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When your stomach feels upset. Bum stands for feeling “bummy” and slang for stomach is “tummy”, or “tum”.
“My stomachs been feeling upset, I have a bum tum”.
Bum Tum by Razzledazzle379 December 5, 2025
Related Words

Double bum tum 

This phenomenon occurs when a man or woman has a beer belly and s/he wears a belt in the middle creating a bum-like effect.

See photo: This phenomenon occurs when a man or woman has a beer belly and s/he wears a belt in the middle creating a bum-like effect.
Amaya: Ashleigh, do you think this belt looks nice?
Ashleigh: nah. I think it gives you double bum tum
Double bum tum by No dbt September 23, 2015

tum to bum 

1 the 'dropped' stomach feeling that you get when riding a roller coaster; 2 having an upset stomach where your food is passing from your stomach to your bum very quickly.
3. being so full after a meal, there is absolutely no more room left for another bite, every part of you is totally and completely full.
1. Whoo! That ride totally made me feel tum to bum.
2. After eating that old kfc and cole slaw we all were tums to bums.
3. Wow, that buffet was great! But now I'm just tum to bum.
tum to bum by wilma roberta August 22, 2009

Bum Tumbler 

Someone who disturbs sleeping or intoxicated homeless people by knocking them over. Similar to cattle tipping. May also be used as a derogatory term.
That Andrew is a dirty bum tumbler.
Bum Tumbler by SomeGuy1981 June 30, 2011

Bum Tumbler 

A pejorative term used to imply someone enjoys sticking their fingers up someone else's anus, most commonly used as a gay slur. The name comes from pin tumbler locks as you need to stick a key or pick into the lock to move the pins to open the lock. The finger would be the key and the ass is the lock.
What're you Bum Tumblers up to?
Bum Tumbler by Fyce September 2, 2017
A tum that looks like a bum. Usually occurs when a person gains weight and develops a crack down the centre of their stomach, with flabby asscheeks on either side. Can also be the result of hernia.
Sharon had better lose some weight, she's developing quite a bumtum there.
bumtum by Kez 4 Prez April 12, 2017