The act of masterbating until you are about to cum, then very quietly sneaking into the bathroom while someone is taking a shit and you blow your load all over them
GIRL-1: Oh my god, Dominick is so disgusting! He gave me a sticky suprise last night while i was taking a crap!
GIRL-2: No way! That's amazing! I've always wanted one!
When you're taking a poop, but when you go to wipe you clench your butt hole and the toilet paper rips and sticks to your butt.
I'm so unlucky, I just got a sticky suprise while shitting.