When a guy takes a trumpet, shoves it in a girls vagina as far as it can go. Then he blows into it making it tickle. He then takes it out, cums in it, making the girl suck it out.
Nick: "Dude i just got done giving Kelly a french horn drill."
Ant: "Really?! I did it to Hannah the same day."
Ant: "Really?! I did it to Hannah the same day."
by BIGDICKS"R"US!! March 20, 2010

by Dwaine Howe August 4, 2008

The act of forcibly inserting ones knob, shaft and entire scrotum into an unsuspecting and unwilling females vaginal canal.
by Mozzz January 11, 2014

The act of ruining a perfectly good TV show with a terrible "twist" during the series finale; referring to the eyeroll-inducing "twist" during the series finale of How I Met Your Mother, where the entire story of how Ted met his children's mother turned out to be an unconscious attempt to ask his children if he can date his ex-girlfriend Robin again. Ted then shows up at Robin's house with the blue horn from their first date/the first episode.
"Man, I used to love that show, but the series finale was such a blue french horn."
"I can't believe how they blue french horned the TV show like that!"
"Remember when that entire season of Roseanne was just a hallucination? What a blue french horn!"
"They thought they were bringing the show back full circle, but really they just blue french horned the entire thing."
"I can't believe how they blue french horned the TV show like that!"
"Remember when that entire season of Roseanne was just a hallucination? What a blue french horn!"
"They thought they were bringing the show back full circle, but really they just blue french horned the entire thing."
by ninjabailarina September 21, 2014

The exact meaning is hazy, but is along the lines of inserting the penis into the belly button. Also a cruise ship in San Fransisco.
by ghmojo March 12, 2010

During foreplay, or making out, or any mild sexual activity, when one partner feels a sudden urge to take complete control, by pushing the other on their back, mounting them, and being extremely aggressive. Very enjoyable for both parties involved, usually a precursor to wild animal sex.
by I am a fan of this technique October 1, 2004

When you drive the bus on a girl as you're having sex with her, you insert your thumb into her booty to illicit a yell, moan, shout, curse, etc. from her.
Dick was driving the bus on Jane when he decided to honk her horn. She yelled and moaned in approval!
by GI75 December 20, 2006
