The act of defecating in one's shower then mashing it down the plug hole with your foot, or a finely directed stream of urine.
Yo look I jus flush my shitower down da drain yo
by Matthew Benjamin September 17, 2006
When you know you're about to take a massively messy shit that you are gonna have to take a shower afterwards.
Oh no man, I feel a shitower coming on.
by Louie Williams August 04, 2015