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Eefer as in relating to ass or butt/booty.
Damn, look at that girls eefer, homie.

Ex. Damn ive been doing hella squats lately, my eefer's getting hella bigger.
by BangzBlood June 13, 2016
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3
Eefer the name given to the E4 robot but had recently become a name given to lads. It's pronounced Eifer like the Irish name but with a different spelling
Lad - Yo, this is my friend, Eefer

Eefer - safe lads
by TopJEJ November 04, 2018
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