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."
by BIGDICKS"R"US!! March 21, 2010
Get the French horn drill mug.