Definitions by esterminator

FUBT 

When one messes up in a big way. FUBT, meaning Fucking Up Big Time. Pronounced Eff You Bee Tee.

"Apostolos, you fucked up again! FUBT!"
"Everytime Apostolos fucks up, everyone laughs! He's FUBT!

FUBT by esterminator August 31, 2013