smellanoma 

A release of anal gasses so vile it gives you nose cancer

Dude,that fart gave me stage four smellanoma

smellanoma by Word ferguson August 26, 2023

smellioma

To have an unhealthy and permanent foul odor; usually smells like dead fish and feet

Benjamen Rhea-Carver
For picture, www.sholden.com/andy/ben.jpg

smellioma by Frank March 16, 2004