1 definition by RichardSmoker
A small remnant of white toilet paper clinging near a girls butthole, that a man discovers while doing a girl doggy style and gets ambitious spreading her butt cheeks. Usually specific to a girl with large cheeks that ripple and wave like an ocean while she gets smacked from behind. A skinny girl with pancake ass more accurately has a dingleberry as opposed to a white cap.
Man, I was hitting that girl from the gym with the huge cakes from the back the other night... when I cracked open those cheeks I spotted a white cap and had to close it back up real quick before I went into Boner Shock.
by RichardSmoker March 1, 2015