1 definition by BoredVirginBoy

n:

1. the state a man's penis enters when either the environment gets too cold for its liking, or theres an unnattractive woman in its midst. During this time, the penis will become shorter than usual, resembling a tree stump

2. When the penis secedes from its union with the vagina
a.) Some Guy: gawd its cold here, im getting a reverse-boner...

b.) Some Guy: Dude, i was holding hands with my girlfriend, and getting "You-know-who" (his penis) ready for "you-know-what" (blowjob), but some ugly hoe came along and gave me a reverse-boner!

c.)Some Girl: i was having sex with my bf, but when he was about to stick it in, he had a reverse boner...
by BoredVirginBoy May 3, 2009
Get the Reverse-Boner mug.