boo

Sound that a fake ghost would make

Ghost:BOOOO!
Child:AHHHHHHH!

by BEYONCE November 8, 2003

Peek-a-boo

An uncircumcised man. An un-erect penis thats hidden in its foreskin.

Girl he got a peek-a-boo!

by leah2315 January 7, 2014

boo

A word used to scare people.

Guy: "BOO!"
Guy2: "omgwtfbbq"

by Gracin July 29, 2005

Boo Bear

pet name; sign of affection and endearment

Ramero will forever be my Boo bear <3

by Nessa Ramos July 31, 2008

Ukrainian peek-a-boo

Classic scam mastered by Frank Gallagher from Shameless. Involves jumping out in front of a moving car as your partner distracts them, then shaking them down for cash. Also the slang term for the surprise Trump got when several respected diplomats jumped out and testified against him regarding his extortion campaign in Ukraine.

Definition 1:

Frank: Bro, I'm short on cash. Let's do a Ukrainian peek-a-boo!
Frank's creepy friend: Nah, man, people don't carry cash anymore; it's not worth it.

Definition 2:

Rob: Dude, did you see what happened with Trump!?
Tom: Yeah man, he got a serious Ukrainian peek-a-boo!

by Notdevinnunes November 24, 2019

Boo Kitten

a slang term of endearment used for a gay man. Usually the feminine type.

Thats Phil, he's my new boo kitten.

by Baby J and $GK$ June 10, 2007

ishy boo

a slang word for papa gino's that two very high people made up

"im hungry"
"ishy boo"
"ishy boo boo boo"
"give me a large cheese pizza, large cheese breadsticks, and a pitcher of coke. WHAT DO YOU MEAN YOU DON'T have pitchers anymore!!!!!!"

by reeg January 28, 2006