look up any word, like bae:
 
2.
The facebook app where you get 10-70 answers each week.
This is SO friggin' annoying. 21 Questions is filling up my notifications! >:O
by RawroRawr February 04, 2012
 
1.
a game were you ask each other personal questions, much like the game 20 questions
wanna play 21 questions
by ambey May 20, 2008
 
3.
50 cent's song !!!!!!!!!!!!!
"I'll ask 21 questions and they all about us."
by ~*50 fan*~ June 29, 2003