A person who has a large amount of sex appeal and who is amazing in bed. Usually likes to have sex in different places like hot tubs or pools. Has a lot of urges to have sex.
Guy 1: You know that chick over there?

Guy 2: No, why?

Guy 1: I met her at the club last night. Dude, she's such an effler!
by An amazing chick. June 5, 2009
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