the act of having 3 or more people cumming inside your butthole
then pouring it into a cup
and drinking it

A person with an outwardly dominant, masculine, or aggressive personality, but who also enthusiastically takes on the submissive or "bottom" role in the bedroom.

Watery and often violent diarrhea. The sound of excreting said milkshakes in public restrooms can often be mistaken by other patrons as that of someone vigourously mixing actual milkshakes (Unless it is accompanied by screams or loud groans of agony).