Out of tune harmonica

Blowing into your partners anus during analingus, in order to build up enough air to cause sound to permeate from the sphincter.

"I got a little too into it last night and accidentally made Jill into an out of tune harmonica."

by gmos-kill February 7, 2018

Meat Harmonica

Motorboating the shaft of a man's member from side-to-side, resembling the playing a harmonica.

"During a BJ last night, Heidi gave me the ol' meat harmonica!"

by The Heidi & Frank Show September 23, 2020

Harmonica joint

A certain of joint-rolling called a "flaming backflip" (you can look this up anywhere) cuts a hole along the paper, so you must inhale through the hole instead of through the roach. The result looks as though the smoker is playing a harmonica

try to roll a flaming backflip. it will probably turn into a harmonica joint. you tube the flaming backflip.

by lost1516 December 18, 2011

Boston Harmonica

When two guys are docked together and a woman licks the two joined shafts like similar to playing the harmonica.

Me and John were hanging out when Sarah come over and we had a 3 way, she's always wanted to try a Boston harmonica.

by PhenicRaider February 24, 2023

Sloppy harmonica

When you shit someone’s mouth and see if they can blow it through their teeth to the tune of piano man

Bro Eddie gave dave the nastiest sloppy harmonica yesterday after work.

by Big daddy krieger 6969 August 8, 2022

Spicy harmonica

Put hot sauce on vagina then blow like a harmonica

I have some extra hot sauce..

Can we do the spicy harmonica

by Astralonion December 31, 2021

Play the harmonica

when you drop a wafer, so you blow on it to make sure it has no germs.

"oh no, your wafer!"
"ahh it's ok, let me just play the harmonica"

by deak larjé March 30, 2022