When two or more stoners get together and see who can smoke more pot. In other words, who'll get "baked" first.
Dude, Mike totally dominated us all at the bake off last night. He smoked about an ounce of chronic and didn't even act stoned when we went to McDonalds for munchies.
Where two or more people get together and see who can bake the most cakes or other bakable foods in a designated amount of time.
Sometimes you can win bonus points for decoration.