Polite way to say the word "Fuck."

Stands for Erectile Function, anybody who doesn't have ED can have EF, it means you are able to hold an erection without Viagra, Cialis etc.

European language schools organisation. Nobody know's what EF actually means although, having lived in Oxford - an EF stroghold - for a number of years I can only assume it stands for 'Easy Fuck.

EF stands for Epic Fail, something that you may be too.

1) a child with a face like it has down syndrome.
2) one fugly ass bitch

Ef, or Effff, depending on one's level of enthusiasm, is an abreviation for "F.I." which is an abreviation for "Feeling It", typically used to describe being into an experience or a person.

One can also be Triple F.I., or simply Triple.

Simply the letter f(F) to name the letter F \ef\.