When head is being received and you also have a fist in your ass, much like the playing of the french horn.
Guy 1: What were you doing with your girl last night?
Guy 2: She gave me the French horn treatment
Guy 1: Ahhh dude I love that shit
Guy 2: She gave me the French horn treatment
Guy 1: Ahhh dude I love that shit
by TheTubaPlayer February 03, 2021
Get the French Hornmug.