What is Suprise Party?
1.
In short, getting raped, could be more blatantly used as: suprise sex, implying of course that party is sex and therefore giving a lighter tone to such horrendous actions
"So Zach did you get with Liz last night?"
"Psh, she basically gave me a suprise party. I can barely walk."
See
2.
To get jumped. to get robbed or stuck up.
Yo, dese nigas round the corner throwing surpirse parties.
