Live Audio Porn.
One is treated to L.A.P. when a neighbor/roommate with whom you share a thin wall, or live close enough to, has loud sex. Generally characterized as a truly terrifying experience in which the recipient of the L.A.P. is subjected to aural terrorism in the form of moans, groans, yelps, heavy breathing, bed/furniture crashing, and various other unsettling noises.
Last night, while I was trying to study for my final, my disgusting roommate and his girlfriend treated me to a L.A.P.
The L.A.P. I caught the other night was so bad, I could tell she didn't cum.