When you end up with fecal matter inside your urethra. Essentially a UTI on crack.

In social contexts, "poopy urethra" means the opposite of the benevolent greeting "namaste."

"Poopy urethra" is a way of telling someone that you sincerely hope they wake up and step on a Lego™.
I'm having mad poopy urethra and can't come into work today!

"Poopy urethra" to you, sir!
by CougarHunter69666 September 29, 2019
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