LIQUID THAT IS SECRETED FROM YOUR BEHIND.
SWEATING FROM YOUR BUTT.
SHE WAS SHAKING HER RUMP SO FAST, THAT HER BOOTY JUICES STARTED COMING OUT.
The act of putting foreign liquids (usually alcohol) into someone’s ass, stirring it around and then having said individual shit it out into cups before a party and then watching as members of the party drink out of the cups unknowing of the process in which the drink was made.
“Bro I think there’s secret booty juice in this cup”