Bum rubbing 

When you invert your ass cheeks into another's crack and start rubbing back and forth, making clapping sounds

Me Murray's ass cheeks clap when we are bum rubbing

Bum rubbing by The Sexy Mr Murray June 26, 2021

Bum Bum Tit Tit 

For when you really want to rip with rage but can't bring yourself to say "See You Next Tuesday"

For when you have a hangover and up a ladder putting up Christmas decorations that keep falling down "That bloody Bum bum tit tit tinsel"

Bum Bum Tit Tit by Bionic Beetroot June 18, 2022

Bum Plucky 

Having someone put cereal in your ass then picking it out.

Micah: “Did you hear I gave a Bum Plucky to a girl last night!” David: “Yo!! that’s sick bro!”

Bum Plucky by Dried craison July 13, 2022

bum fancy 

A quite preposterous and rather Victorian way to describe gay sex

Did you witness Dave and billy in the alleyway?

I consider bum fancy was involved!!

bum fancy by anonymous July 13, 2022

Bum-Booty 

An insult for someone who is giving bum-booty behavior

"You Bum-Booty", said Dameer.

Bum-Booty by vntecorez February 1, 2023

Bum cake

A very mean person that has commit a lot of war crimes or someone that stole your sandwich are is just a dumb little mean person

You are a stupid little bum cake

Bum cake by Gorg_BruhHub October 19, 2023

Bum Oil

The unfortunate event when fecal residue is left around the anus and the person in question does an activity which involves great exertion. This exercise leads to sweating and consequently blends with the faeces to form a substance known as 'Bum Oil'.

Dude 1: that was a great round of tennis
Dude 2: yeah dude, but we should have stopped earlier, i've got bum oil running down my leg!

Bum Oil by Pretty in wellies June 20, 2007