It is mostly used as a greeting or a goodbye. Poop poop is a noun describing someone in your life. So it takes the place of....buddy, pal, dude, brother, sister, father, mother ...etc.
So instead of "Hey Buddy" You would say "Hey Poop Poop" And it is understood that it is meant with a little splash of love.

Normal way
"See ya later Nikki"

The Poop Poop way
"See ya later Poop Poop"
by J McCallum January 14, 2008
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It’s the opposite of the word “pee pee” a word to describe one’s penis or vagina. Poop Poop is used to describe someone’s ass.
by Minecraft1238 January 12, 2019
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when you poop and then you wipe and there nothing on the toilet paper
i went to the restroom earlier and dropped the fattest dump but it was still a no poop poop
by i h8 ur mom August 25, 2021
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a game that you play on the toilet where you make an attempt to clog the plumbing by taking the biggest possible dump you can and then flushing. clog the toilet? WINNER!
dude i went in the bathroom to play poop poop golf and i took the biggest dump and clogged that son of a bitch!
by wyman4221 April 08, 2011
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when someone is annoying you or you just don’t feel like talking
Random girl: Why aren’t you texting me back when I texted you?

Other random girl: Poop poop diarrhea
by Sidothekido December 14, 2020
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What you say when you're really about to shit your pants and the bathroom is either far away or occupied.

You typically yell this in a state of panic as you can feel the shit trying ever so desperately to jump out of your butthole. You clench like your life depends on it. Which in this case it lowkey does.
"Get out of my way! Fuck! POOP POOP POOP FART FART FART SHIT SHIT SHIT"

"The bathroom is, like, really far away, and do you see the line? It's occupied! Clench!"
by gentle snowflakes November 21, 2018
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george sorial; booty
AHHHH look out there's a poop faced poop headed poop and he's running around in a circle while snorting cocaine and watching alien anime.
by George's mom March 23, 2004
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