Mystery Horn 

n. Slang. Any homemade drug paraphernalia (i.e., pop bottle bongs, Pringles can bongs, etc.) Used in reference to the mystery horn from "The Grand Wazoo," by Frank Zappa and the Mothers Of Invention. Region: American Midwest (Michigan)

This isn't even a Mystery Horn. It's just a ball of duct tape, dude!

Mystery Horn by callinghome November 1, 2004

hornby 

sex c man

rrrrrrrrrrrr

hornby by Anonymous August 5, 2003

HornDog 

A bunny on viagra who just can't seem to get enough lurvin'.

Cindy and Trey AKA Blow and Job AKA The two most horniest people that i HAVE EVER MET IN MY ENTIRE LIFE.

HornDog by Poco November 1, 2004

french horn 

when a guy is giving a girl head, for extra pleasure he reaches around and fists her asshole

jeff french horned jenny last night

french horn by bigbadmet July 3, 2007

horn 

Verb: to have sex with another man's girlfriend.

I horned your girlfriend last night, Jeff.

horn by BigDaddyCavs March 4, 2011

Horn of Odin

A dong is attached to the exterior top of a helmet and worn by one person who moves around a darkened room filled with nude lubricated men in an attempt to find orifices to insert said dong.

Brad and Jonathan couldn't decide who would be the first horn of Odin recipient that evening.

Horn of Odin by Saniflush June 4, 2009

Hornstar 

somebody overly obsessed with porn who keeps it on their computer/phone/ipod. this person is usually perverted. Always talking about perverted things everywhere they go and have perverted thoughts. usually horny.

person 1 : " OMG. max has porn on his iphone
person 2: Yeah. total hornstar.

Hornstar by audrilove April 18, 2009