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A dorky person, often one to act immature.
Can be used as a compliment or an insult.
John: Hey what are you doing?
Sarah: Not a lot, just your mom LOLOL~
John: God you're such a foofus!
Foofus by TiffanyJ September 5, 2008
Related Words
a much less vulgar, more acceptable alternate word for the female genital area.
Elex: Allie, are you a virgin?
Allie: No, why do you ask?
Elex: Cuz your foof is major tight.
foof by Alysha May 18, 2003
An adjective, primarily synonomous with the adjectives fluffy, billowy, and/or puffy. Used mainly to describe a cloud, or the mixture between lemon meringue and sodium bicarbonate.
"When you mix lemon meringue with sodium bicarbonate," started the cheerful Mrs. Fox, "You get a mixture that comes out very foofy".
Foofy by Mistel September 21, 2006
1. Difluorine dioxide
2. The sound FOOF makes when it reacts with pretty much anything.
The FOOF went "FOOF!" when I spilled it on the floor. Now I have to explain the crater to my landlord.
foof by R-dog December 14, 2013
The most elite and prestigious title you shall bestow upon any rank of human. The rank of FooF will not be given it shall only be earned. Most people shall not obtain the rank of FooF within their lifetime, only the best of the best will ever earn themselves the rank of {FooF}
“ Damn that guy is cool”
“Yeah obviously, he is in the {FooF} clan."

"Can I join the Foof clan?"
"No, you are not FooF material Humphrey."
FooF by TheCoachRichie December 8, 2018

foof tube 

A foof tube is a device made from scented dryer sheets, a cardboard tube, and a rubber band. It is used to mask the smell of smoke, usually marijuana.

To make: Rubber band one dryer sheet to an end of the tube, and stuff the tube with the rest of the sheets. Smoke passing through this tube will smell laundry fresh!

Also known as a blow tube.
"Man, smoking in my parents' basement can be sketch, but I use a foof tube and they're none the wiser!"
foof tube by ogmarshall December 16, 2008