Semi-Boo

The name for a person who is not officially your boyfriend/girlfriend (or boo).

My semi-boo and I are going to the movies friday.

by Woupiethug April 29, 2008

Deja Boo

The feeling you've treated these goblins before.

I swear I've seen that Spiderman already.. I must be having Deja Boo.

by kitchensix November 01, 2011

shibbity boo

Fuck it, not worth it.

Shibbity boo, I don't have time for this bullshit.

by Jofosho January 05, 2015

back boo

A person that's post to be there for you , ride that dick , and never sayanything and be lowkey

You the best back boo ever

by Pussykilla1999 October 10, 2017

William Boo

The Biggest Simp

Omg, that guys such a William Boo

by JJs Juicy Forehead August 19, 2020

King Boo

Luigi's nemesis. First appeared in Luigi's Mansion (2001).

Luigi saves Mario, Peach, and all his friends from King Boo.

by mrdrmaster March 28, 2021

Boos flu

A state where a Human catches a virus know as the boos flu (originating from animals). This virus cause one to laugh at any joke whether it's funny or not. Over time the laughter gets so out of hand that one's system can no longer take it and shuts down, therefore leading to death

Sophie got the boos flu last night, sadly her brain found humor at random times therefore leading to her passing

by Ozatech July 06, 2020