Taquito

Taquito is, briefly, Milhouse's dog.

History
Milhouse received Taquito for not wetting the bed for a week. The dog was first introduced when Bart's comet broke up into a small rock, fulfilling Homer's prediction about it being no bigger than a chihuahua's head.

Taquito was seen with Bart when he tried to land the role of Fallout Boy in the Radioactive Man film and in Bumblebee Man's house.

Although tiny, Taquito was the alpha dog of the canines attacking Springfield, which caused Marge to kick it at the Springfield Dog Park to stop the canines aggression. Taquito later befriends Gil, intending to eat his corpse when he dies.