Top definition
A sometimes awkward situation where someone else abruptly becomes aware that someone has a boner.

A combination between "interjection" and "erection"
Too many people are getting into a car, so some have to sit on laps. Attractive Girl sits on Guy's lap, Guy gets a boner

Girl: "Oh..!"
Guy: *cough* "Um, pardon my interection."
by vonvague December 30, 2010
Get the mug
Get a Interection mug for your barber Sarah.