Knuckle Trumpet 

A euphamism for masterbation. Similar to a Skin Flute.
the act of "rubbing one out". jacking off. stroking it. sowing your own seed

Barney was so lonely on Saturday night, he just sat alone in his living room and played a slow, slippery tune on his KNUCKLE TRUMPET

Knuckle Trumpet by e-rips October 8, 2003

Monkey Trumpet 

A barking spider; a rusty sheriff's badge

"Christ on a bike, who's been tootling on their monkey trumpet?"

Monkey Trumpet by andybased April 30, 2008

russian trumpet 

Shitting in a girls mouth while she licks your balls from behind.

I gave that bitch a russian trumpet

russian trumpet by dashle January 5, 2016

Donald Trumpet 

When you trumpet your hatred and knowledge of evil brought upon the world by Donald Trump.

It's very healthy these days to have a Donald Trumpet.

Donald Trumpet by Ereck Flowers October 23, 2018

Rusty Trumpet

Sitting on your partners chest, with you penis in their mouth, you ejaculate into their mouth as you simultaneously fart on their chest, giving the illusion that they are playing the trumpet with your cock. Extra bonus points are awarded if you manage to shard at the same time.

"Bill always leaves a stain when we do the Rusty Trumpet", Kelly complained.

Rusty Trumpet by Pango_X May 21, 2006

Muted Trumpet 

An "inverse" rusty trombone.

I got a Muted Trumpet. It made me go "wah wah wahhhhhhhhhhhhh"

Muted Trumpet by Ben November 7, 2003

rump trumpet 

Fart

After 4 helpings of refried beans, my rump trumpets were sounding loud and clear

rump trumpet by bunionsss December 23, 2009