A substitute for the word "fucking". Used by pathetic hipsters, scene kids, live journal and myspace users.
Livejournal entry for Monday: "Man, my Mom wouldn't let me go to the show last night, what the eff."

"That's the effing sex."
by hXc Hater May 14, 2006
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A word used by morons who think it's cool to water down the word "fucking".
Those bands were effin' cool.
by wwiiggllyy September 12, 2003
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effin comes from the name of an Irish Saint - St. Eimhin, pronounced Effin. So it is actually the name of a parish in Co Limerick, Ireland and some of us are very proud of it!!!
I grew up in Effin Co. Limerick, Ireland
by mary Donovan April 21, 2004
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how polite, or posh people, say fucking

not usually in the sexual sense...
you effin oaf!

fetch me my effin cake you spaztard!
by DiamondSerpant March 26, 2007
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a phrase used to add emphesis right after something bad or not good occurs; you can say it in replace of the word "fuck" (ex. fuck, my cell broke!)

(and this phrase if from dodgeball)
oww! i just stubbed my toe! effin a cotton, effin a!
by pepper brooks July 11, 2008
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Used normally by children who dont want say fucking, for example If their mom checks their phones or theyve been told swearing is bad.
"i love effin girls :DDDDD" "WHAT YOU SAY BRUV? ILL LET YOU KNOW IM EFFIN 11!"
by Motherheckers September 21, 2018
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