semi-boner

When ones penis is no longer erect, possibly either after blowing ones load, or just losing an erection. A semi-boner is often used for playfully slapping ones friends in the face while they sleep for a hilariously good time.

To try and piss my friend off, I got a semi-boner and helicoptered it around in his face.

by BLICK12 May 4, 2006

Semi-boner

A semi-boner is when a man's penis is no longer erect after blowing his load or just becoming aroused.

Some guys get a semi-boner to playfuly slap each other in the face with it.

by Tiea September 28, 2008

semi boner

when the tip of your cock is floppy but the rest is as hard as a brick.

omg tommy you have a semi boner.

by tommysucks February 19, 2017

semi boner

When your erection is only semi, it does not go all the way. This is actually more embaressing than a true boner because people think you 'cannot get it up'

HAHHAHAHA LOOK PHIL HAS A SEMI BONER OVER CHARLOTTE!
ITS PROBABLY OVER JOHNNY CAUSE ONLY HOMOS GET SEMI BONERS!

by chloerose444 October 9, 2008

semi lady boner

When the female can feel the moisture coming to their vagina.

“I saw Matt Damon and got a semi lady boner.”

by Cabbin February 12, 2018