Shum 

The act of shitting and cumming simultaneously. Often accidentally, however seldom unwelcome.

Bro #1: "Hey bro I just blew a fat shum in the bathroom back there!"
Bro #2 "Sick bro! I haven't shummed in ages!"
Bro #1: "yeah it was shumtastic!"

Shum by KHMIKER August 1, 2020

Shum 

To shit cum

i'm about to shum

Shum by Wastegash November 14, 2020

Shum 

Verb. To defecate and ejaculate simultaneously

There is no better revenge than to shum on someone.

Shum by Wording long man November 18, 2020

Shum 

A mixture of shit and cum

A guy fucked my ass last night and this morning shum came out

Shum by King Shummer January 12, 2022

Shum 

You can say "shum" after a person coughs to acknowledge that you are not bothered by the cough, and that you hope they are okay

It is pronounced: sh-UM

It is inspired by the calming "uhm" sound that is soothing to others when they are coughing

John: *coughs*
Henri: Shum to acknowledge John's cough

Shum by rootone March 16, 2022

Shum 

When you get fucked in the butt and you shart out the cum

This dude came in my ass and then after I shum everywhere on his bed

Shum by bkbrohon79569 May 29, 2022

Shum 

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.

Shum by Teerextc June 10, 2022