1 definition by Pano Emporio

Top Definition
Noun. Midnight oil means male semen. Comes from the fact that male semen is ejaculated usually by nighttime in shadily fashion and from its thicky, oily appearance.
You better watch your back, Annabelle. That guy is always ready to inject some midnight oil into unsuspecting p****es.

Oaah, I spruitted my Midnight oil!
by Pano Emporio August 05, 2009

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