the one type of alcohol or mixed drink that mere thoughts of which will forever sicken the drinker, due to a really bad experience in the past.
partier # 1: patron shots for everybody!
partier # 2: (gags and runs away.)
partier # 1: WTF?
partier # 3: he had waaaay too many shots at his sister's wedding. now tequila's his signature liquor.