Home > Dog Breeds > Toxirn
6-7 lbs
Cairn Terrier

A Toxirn is a delightful designer hybrid. He is a mix of the Cairn Terrier and the Chihuahua. This small dog is confident and friendly. He forms a very close bond with his family. Unfortunately, he is very protective and can become aggressive towards strangers in an attempt to protect his humans.  He is also a bit territorial when it comes to other dogs and will stand up for what he thinks is his home. This perky and confident dog stands 8 to 10 inches and weighs 6 to 8 pounds. 

Date of Origin
Cairn Terrier, Chihuahua

Toxirn Health

Average Size
Height: 8-10 inches Weight: 6-8 lbs
Height: 8-9 inches Weight: 6-7 lbs
Major Concerns
  • Entropion
  • Canine Hip Dysplasia
  • Perianal Fistulas
  • Diabetes
  • Corneal Dystrophy
  • vonWillebrand’s Disease
  • Craniomandibular Osteopathy (Lion Jaw)
Minor Concerns
  • Hypothyroidism
Occasional Diagnoses
  • None Known
Occasional Tests
  • Eye Examination
  • Blood and Urine Tests
  • Wellness Check
  • Full Physical Examination regarding joint movement around the hip and kneecap
  • DNA for VWD

Toxirn Breed History

The Toxirn brings together the playful nature of the Cairn Terrier with the spunky bravery of the Chihuahua to create an ideal companion dog that is perfect for any living situation. The brave little Cairn Terrier was bred to hunt prey between the cairns of Scotland and that is how it received its moniker. For hundreds  of years, this small dog has been a beloved pet of the Scottish people. In 1938, this compact breed skyrocketed in popularity when the iconic movie, The Wizard of Oz, was released in movie theaters. Dorothy, the main character, owned a feisty Cairn Terrier that she called Toto. The Cairn Terrier was also the breed of choice in the sitcom I Love Lucy. Little Ricky, the child star of the show, owned a Cairn Terrier named ‘Fred’. The American Kennel Club recognized the breed in 1938 and it was entered into the Terrier Group. The Chihuahua is often called the ‘Taco Dog’. Originating thousands of years ago in Central America and Mexico, this tiny breed is believed to have been owned and bred by the Toltec civilization. The Aztecs also raised the wee canines as a food source and something to barter. These slight in size dogs also made ideal bed warmers and were also used for healing because it was believed that the pain and suffering of the person could be transferred to the dog. They were often cremated with their deceased owners as part of a funeral rite. It was believed that the rite exonerated the human’s sins for the afterlife. In 1904, the Chihuahua was officially entered into the Toy Group by the American Kennel Club.

Toxirn Breed Appearance

The Toxirn is a cute combination of the Cairn Terrier and the Chihuahua. He has a wiry, bristle coat that isn’t overly long. The hairs tend to stick out at all angles making him look a bit frumpy but cute. His coat color is usually a combination of tan, grey, and black. His nose is a small black button and his dark eyes are bright. His tiny ears are upturned and pricked in shape. His body is firm and muscular. Although tiny, there is nothing physically frail about the dog. He is a robust little package.
Eye Color Possibilities
Nose Color Possibilities
Coat Color Possibilities
Coat Length
Short Medium Long
Coat Density
Sparse Normal Dense
Coat Texture
Straight Wiry Wavy Curly Corded

Toxirn Breed Maintenance

The fur of the Toxirn is virtually maintenance free. It requires only occasional brushing and rarely tangles. It doesn’t grow so he does not need clipping. The fur also rarely sheds. His tiny little toenails often wear down from walks and play but some owners have to clip their dog's nails once a month to maintain their length. His pricked ears sometimes accumulate debris. A once a week washing with a warm cloth readily clears out the dirt from his ears. He usually only requires a bath once every month or two to remove the doggy smell. Some owner’s brush their dog's teeth once or twice a week to remove plaque and prevent unwanted doggy breath. Brushing also helps prevent gum disease later in life.
Brushes for Toxirn
Slicker Brush
Nail Clipper
Brushing Frequency
Daily Weekly Monthly

Toxirn Temperament

The Toxirn is a spunky little dog that doesn’t know he’s tiny. He thinks he’s a king and can conquer anything. His outgoing attitude makes him a beloved family pet. Unlike Chihuahuas, the Toxirn usually adores gentle children. He bonds very closely with his family.  His small size and love of being pampered make him an ideal lapdog. The spunky Toxirn is always ready for a walk or a game of fetch. He loves to enjoy life and he has a very happy character. He should get along just fine with other animals within the home, but supervision is always recommended, especially when tiny rodent like animals are present.

Toxirn Activity Requirements

The Toxirn is an ideal combination of attitude and activity. He is always ready and willing to go for a walk or enjoy a run at the dog park. The little guy is also happy to spend his time curled up on his owner’s lap. His versatility makes him a great choice for an apartment where outdoor exercise opportunities are limited. He is highly intelligent and loves learning tricks and basic obedience. The Toxirn tends to get along well with other pets and enjoys the company of other dogs at the dog park. However, remember that this modest sized guy thinks he’s a big dog so he isn’t afraid if confronted by a bigger, meaner dog.
Activity Level
Low Medium High
Rec. Walk Mileage Per Week
7 miles
Minutes of Activity Per Day
30 minutes

Toxirn Food Consumption

Cups Per Day
1 cups
Daily Cost
$0.9 - $1
Monthly Cost
$20 - $30

Toxirn Height & Weight

6 Months
Height: 6 inches Weight: 3 lbs
Height: 5 inches Weight: 3 lbs
12 Months
Height: 9 inches Weight: 7 lbs
Height: 8 inches Weight: 6 lbs
18 Months
Height: 9 inches Weight: 7 lbs
Height: 8 inches Weight: 6 lbs

Toxirn Owner Experiences

Book me a walkiee?