When the piss you've stored in your urinary bladder starts going sicko mode and it gets harder and harder to move due to the pain, just like your dick when you get a boner.
Chad: The liquids in my body are moving everywhere! It hurts so much agh lemme sit down fam.
Derek: Ya homie lie down, that's a serious Urethra Boner.
by Thugisaurus October 22, 2019
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When a male urinates and the pee stream splits to the left and right, instead of shooting straight. This anomaly generally occurs after the male orgasms.
Girlfriend Susie: "Wow. That sex was great. Why do you look so sad?"

Boyfriend Ricky: "Well, I'm just dreading the Urethra Forklin that comes after."

Girlfriend Susie: "What's a Urethra Forklin?"

Boyfriend Ricky: "You know, I've always thought you were a stupid bitch."
by k795 April 04, 2016
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The act of shoving/stuffing an object down a males urethra (the hole at the tip of the penis); normally for sexual pleasure.
Bob: "Have you tried sounding?"

Joe: "Oh yeah I've heard urethra sounding is the new thing to get off."
by mcdaddy420papi June 28, 2018
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The act of shoving a barrel of a PKP Pecheneg Light Machine Gun up a mans urethra
"If tim doesn't show up to the party, i will show him Urethra Conquest!"
by Freidrich Friednicht August 06, 2012
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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 28, 2019
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The act of inserting a sex toy or one’s penis into another man’s gaping urethra until the pain causes him to sing high notes.
Omg I’m so sore after last night bro...he/she gave me a Urethra Franklin
by Turbo Chode May 05, 2020
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