Top definition
Boys from other schools. Pronounced like beef-o's. Made popular by Tina Belcher on the show Bob's Burgers. BFOS are more attractive since their reputations are unknown to girls from different schools.
Bob: What are BFOS?

Tina: B.F.O.S, boys from other schools.

Linda: What's wrong with the boys from your school?
Tina: I need fresh faces...and fresh butts.
by queenkathleen June 25, 2014
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Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
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2
Best Friend of the Office; Your best friend at work whom you normally would not be friends with outside of work; A BFF, but only at work.
Lisa: "Hey Marlon, are you going to hang out with Jeff on Thursday night?"

Marlon: "Hell no, he is just my BFO. We don't hang out outside of work."
by LisaBisa28 April 14, 2009
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3
Bildet for oppmerksomheten
Hei noen som vet om et sted å shoppe i Oslo? Bfo (random bildet under innlegg)
by pineapplebitch March 31, 2015
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5
BFO: Brazilian Food Orgy.

Lunch or Dinner commonly consumed in Southern Brazil, in the form of an unlimited, obesity-inducing buffet of orgasmic proportions, eaten regularly (aka every day).
"Hey Luan, I really feel like gorging my face with food."
"We should head down to the BFO down the street then."
"Which one? There's ten of them on this street."
by djwanker October 02, 2014
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6
Back the Fuck Off

A socially acceptable/reasonably polite acronym a guy or girl can either text, message, or say to a person that persistently hits on them without a clue as to how disinterested they are.
Nah, girl. I told him to BFO, so I'm done with that shit.
by IUarileya January 10, 2011
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