The act of acting like you’re falling asleep and/ or destructions , so you can put your head in someone’s lap to perform oral sex.
That girl was being a sleepy weasel last night after one drink.
The act of pretending to be drunk/sleepy in order to put your face in someone’s lap to perform oral sex.
Those girls were being some sleepy weasels last night.
A generally pleasant all around nice person.
Aaron sure is a sleepy weasel.