slang term meaning Efficient; something or someone is efficient, they are able to do tasks successfully, without wasting time or energy.
In class today i was so effin!
by Nunya Bizznis May 31, 2011
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it is the nice way to call your friend a Fucking Retard.
Dude... you spilled the bong!! you Effin Ree!!!!
by jonesberger March 17, 2019
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Effin gato is the spanish/english version of saying "fuckin pussy!"

Someone that's scared shitless of everything.
Person A:"your mom is an asshole."
Person B:"watch your mouth you EFFIN GATO!"
by CrayUNI February 14, 2012
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EXTREMELY awesome; cool; rad; sweet
"Whoa man! that's effin dibs!"
by M.hoff May 13, 2008
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He sat on his porch with a half bottle of Proper No. 12, effin' and blindn' at the moon!
by talk2me-JCH2 July 7, 2022
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1) Someone or something that is hard to describe, pin point, or label.

2) Indie clothing label for men and women.
1) "I really like their music, but you can't really catagorize them...they're a total effin effigy."

2) "Yo I got this crazy hoodie from Effin Effigy. Their stuff is TOO dope."
by Bozena October 31, 2007
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Used when one tries to hold back from using the "F word" but immediately after is much too excited and just says "Fuckin'" right afterwards anyway-combining the two into one word; often used when intoxicated & cannot control the usage of profanity
by Courtster May 3, 2008
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