Verb to describe self-defense mechanism of shutting down listening to protect against possible but likely catatonic state induced by montonic, ramblings of mindless, self-absorbed asshole. Failure to "Rassmute" can result in uncontrolled drooling and or acute tourettes.
Don't you be rassmutin my ass! You listen to me when I talk or I'll stick my boot so far up your ass, you'll taste the dogshit I just stepped in.
by Shower Stalker April 11, 2003