i took a phat shum on my wifes chest last night paul
by SDHit June 7, 2020
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A mixture of shit and cum after an anal cream pie. Also known as a buttload
Please don’t get any more shum on my sofa.
by Teerextc June 11, 2022
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Said when someone does something embarrassing or tries to hard to impress but fails.
Also said when someone can't make a come back.

This word was said in sequence with a pitching or stroke of the chin.
( 1990s NZ term)
"You think your ............. , shum you......."
by Erinz1 May 30, 2016
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When a man ejaculates during intercourse, then feels shame immediately after the euphoria of climaxing.
"Yea, I picked this girl up last night...I Shummed so hard."
by ThePurpleDino January 25, 2020
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When a person gets to the max compacity of their shit and sperm to the point it causes pain then releases both the shit and the cum at once to feel the maximum relief known to man. Shum

Or

When you feel pleasure and intoxication at the same time but cannot which is more important so you decide to do it at the same time.
Friend: stfu before I kiss you baby girl
You: be right back I gotta shum real quick
by BigBrainChild August 11, 2019
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To shit and cum into a water bottle or cup
"Time to shum the waters."
"She shummed the waters straight in our sink!"
by TheGodofJazzCabbage September 6, 2019
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