Fartnamy 

Fart•nam•y (Verb)

Farting in harmony, creating a short song with your farts.

Originated from the cartoon Bob's Burgers (Season 6 Episode 14)

During a sleepover, Jacob and Keith created great fartnamy.

Fartnamy by AshyBBoom June 14, 2017

fartnami 

A fartnami is an explosive fart, often with a follow through at the end. One may need to change their pants after a fartnami.

The lady was laughing so much she didn't realise that her fart was actually a fartnami with some serious power! The smell was horrid and the follow through! She had to go home and change her pants promptly.

fartnami by Enigmatic_1 September 16, 2018