T. Yoshisaur Munchakoopas, better known by his nickname Yoshi, is a character from the Super Mario Bros. video game series, introduced in Super Mario World. He is a green dinosaur who is one of many identical, different-colored dinosaurs, also called Yoshies (according to an episode of the animated series, it's short for "Yoshisaur"). He is a recurring ally to Mario and Luigi, and he has also starred in his own spin-off video game series and is also a playable character in every Mario spin-off game.
In the Super Mario World Christmas episode "The Night Before Cave Christmas", he is first seen fighting over a barbecued mammoth rib with Oogtar the caveboy. Mario manages to get the two to stop by telling them about Christmas. When Princess Peach catches him in the act of eating the candy canes that she has been hanging on a tree, she reminds him that Santa Claus only brings presents to good children. Later, Yoshi accompanies Mario into Bowser Koopa's castle to recover the stolen toys.