While TFB probably does have a lot of definitions, Team Flash Bang is the fastest growing usage. It is when someone in an online game such as CS throws a flash bang grenade and blinds his teammates and thus leading to their unfortunate death. It can be done by accident by morons or on purpose by jerks.
Player 1: "Agg. I can't see. Don't TFB!"

Newbie: "Whaaa??? How do you play this game?"
OR
Jerk: "Muhahahhahahahha"
by Doobie Smokes You February 5, 2005
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A place in which something that is "tfb" would be put.
Student: I left my homework in my locker!

Teacher: That belongs in the TFB drawer, you get an F.
by cexysloth December 29, 2010
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An acronym for Trust Fund Baby Syndrome. When the case of having a privileged life is so hard and how people think your stuck up when in your own opinion your not boils up to a moment of self awareness that Yes, my friend, you are really that annoying.
While watch flipping through the TV channels, I stop on MTV, which is showing another great episode of Sweet Sixteen, some whinny little bitch cries about not have the birthday party they wanted and how shit isn't fair while throwing a temper tantrum, even though his or her parent is actually footing the bill for it all. Typical TFBS ( Trust Fund Baby Syndrome)
by SleepyDrunk&Horny December 26, 2007
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Forgot your charger? You know what we call that? TFB!!
by 1stLtHTSavage October 15, 2021
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A band who's lead singer is a whiny man named brian.
"dude did you hear the new tfb album?"
"i thought it was by mccafferty?"
by helpistubbedmytoe January 23, 2023
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Oh so you THINK she's acting nuts? That's not acting"that's just TFB."
by villyou December 25, 2022
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That Karen is a tfb.
by TWSD February 5, 2023
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