Blow your horn 

to ejaculate in a woman

"man, that girl has her tubes tied" "aww, so you can blow your horn huh?"

Blow your horn by Scottie P. September 13, 2006

Blow your own horn

The act of sucking your own dick because it is either very long or you are very flexible.

Alfred and Jake were kicked out of the blow your own horn club when they could not reach their cocks.

Blow your own horn by Hashtaghottie October 10, 2014

Blow your ass horn

To ues your ass to make a sound by blowing gass out it or in other words to fart.

Eating beans will make you blow your ass horn.

Blow your ass horn by The Fury 13 October 1, 2010