look up any word, like b4nny:
 
1.
soemthing you say when u feel relieved
"hey guess what! your dog died"
"are you serious?"
"no i was kidding"
"FEWF"
by Heather February 23, 2004
 
2.
The fart of a little girl.
Little girl: *Fart*
Little boy: What was that?
Little girl: Oh, I just did a fewf!
by pickledthumb April 12, 2010