Boner Surprise 

When you surprise your girl with your boner and expect sex. And is met with partial success that ends with her unsatisfied. Could be worse.

Female: I really wish my boyfriend would seduce me, but all I get is boner surprise.

Male: I wanna have sex tonight. strategy? boner surprise!

Bro 1: bro! I was hanging with this new girl and she totally fell for boner surprise!
Bro 2: HA! Bro that’s so classic!! (High fives)

Boner Surprise by Young Skeezy June 6, 2020

surprise boner

an erection that comes for no reason. it just happens. you could be in the locker room with a bunch of dudes. dont worry if it happens there. as long as it only happens once youre probably not gay, just unlucky.

its a quiet day in penisville. some young sperm cells have crawled into the penis and are playing in the veins.
Cell 1: Hey, whats that sound?
Cell 2: surprise boner!
Cell 1: The blood wasnt supposed to come till we see the hot chick on the bus!
Cell 3: DIVE!
Kid in real life standing in front of class: Oh God, not now!

surprise boner by slimjoe169 October 4, 2009

Bone Surprise 

When you find out the prostitute you picked up is actually a man.

Last night, I was on the prowl for a ho and when I found one and started gettin' busy, I got the ol' bone surprise. But I didn't want to waste my money so...

Bone Surprise by Jack Monkey Balls February 20, 2010