One person takes a shot but doesn't swallow it. They then spit the shot into the mouth of the player receiving the baby bird shot.
guy 1: Bro last night Edward got so fucked up he did a baby bird shot
guy 2: Gross, who was the mama bird?
guy 1: It was Adam
guy 2: Damn, his brother?
guy 1: yep
Baby Shit Shots is where you can't take an actual shot *Coughs.....Mitchell PokePack* Anyways Baby Shit Shots is where you don't know what a shot is so you barley put any alcohol in their glass or mouth. Mitchells are usually the worst ones at shots so Baby Shit Shots are most relatable to Mitchells xD Or just Mr. PokeePackk