Top Definition
QEF
(Acronym)
Quickly from Erect to Flaccid. Usually expressed upon realising something (or someone) unappealing proceeding sexual arousal.
Man, that Stacey chick looked hot from behind but I went QEF when she turned around.
by eddandant August 24, 2009
1 more definition
QEF
Quod erat faciendum
that which was required to be done: QEF
by Quirk Evinced Fairly January 25, 2013

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