look up any word, like fellated:
 
1.
crazy, insane, mad, weird,...........
muwahaha im so cucu!
by Izzay November 03, 2005
 
2.
a nickname for the vagina.
Yo she got a nice cucu
by Anonymous December 08, 2002
 
3.
A greeting or salutation used to say "hey" to a friend or NIGGA you know.
Yo, what up wit ya cu cu.
by TriJimidy October 04, 2008