Pee like sea biscuit 

There was a famous race horse named sea biscuit.

Race horses are famous for peeing 6 gallons per second.

So peeing like sea biscuit basically means you’re peeing every second and peeing a ton every time.

Coffee makes me pee like sea biscuit.

Pee like sea biscuit by Lilacpetalsss March 29, 2018

pee like a hobo 

haveing to pee very urgentley

man i gotta pee like a hobo

pee like a hobo by serjvolta January 15, 2007

pee like a racehorse on steroids 

Yet another fucked up word i use when i have to piss like a racehorse on steroids.

I just gave one in my definition you cracker.

pee like a racehorse on steroids by shithole May 12, 2003

pee like a bandit 

the urgent need to urinate.

I have to hangup now, I need to pee like a bandit.

pee like a bandit by zendiveman August 27, 2013

pee like a Russian racehorse 

A medical condition describing the copious diuresis experienced by postpartum women about 6 hours after delivery.

As a nurse, you should expect the new mommy to pee like a Russian racehorse within the first 24 hours after delivery.

pee like a Russian racehorse by InstituteOfNursingParlance September 7, 2019

I have to pee like a mother

This is an expression much like I have to pee like a monster. Also known as I have to pee like a pregnant woman, this phrase refers to how pregnant women have to pee a lot.

Ah! Where's the bathroom!? I have to pee like a mother!

I have to pee like a mother by Raindrops on Roses December 16, 2007

I have to pee like a monster 

When one has to pee really bad, they have to pee like a monster. When you have to pee so bad you can't wait. Having to pee to the extreme. Getting upset because there is no where to pee.

Why is there no public restroom? I have to pee like a monster!

I have to pee like a monster by Emory February 12, 2006