1. an exclamation of surprise or dissapointment similar to "buttfuck" when "buttfuck" or "buttfucker" used as an interjection
2. a dumbfuck
Fucksteak! I lost my cell phone!
or
Wipe that shit off your upper lip, you goddamn ass-licking fucksteak!
by Hanz Von Steiner March 8, 2005
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Fucksteak is a derogatory term used to incinuate the person it refers to is a complete dunce and moron.

Stupid ='s Fucksteak
Billy spilled glue on the cat again"...." Billy, you Fucksteak!!!!"
by Jennkitty March 30, 2011
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