Acronym of Big Ass Forehead. Can be used as a very amusing name for someone with an abnormally large forehead (i.e. big enough to write an essay on).
by Spero August 31, 2007

by ryansmith June 21, 2009

Bring-Along-Friend. A term used on Kingsley's Board, a My Little Pony community. This term is used for a character similar to a muse or a soulbond. The owner of this BAF is a BOF, a Bringer of Friend(s).
by Rose_Pose November 13, 2005

To make a sound to inform of your disapproval, skeptically, and usually comes with a roll of the eye.
A Baf sounds like "bphhhh".
A Baf sounds like "bphhhh".
"bphhhh, *rolls eye* you're not going to get a A on that test! You hardly studied!"
(bphhhh=the sound of a Baf)
(bphhhh=the sound of a Baf)
by Da #1 Definer June 4, 2013

It should work but doesn't for some reason. Or "completely baffed", it never should have worked and still doesn't.
by banyard April 9, 2008

Bad. As. Fuck.
A termed coined on Thursday the 14th of May the Year 2015 by the great Shara (no need for last name for she is greater then Madonda)
This was in no way a typo or texting without auto-correct. Completely 100% intentional. For she is BAF!
A termed coined on Thursday the 14th of May the Year 2015 by the great Shara (no need for last name for she is greater then Madonda)
This was in no way a typo or texting without auto-correct. Completely 100% intentional. For she is BAF!
by Dlow717 May 16, 2015
