Bumscum

A chewy toothpaste-green goo located between the buttcheeks around the anal opening. Possibly originated from swalling your chewing-gum.

I picked off a huge glob of bumscum. Let's go scare my mom with it.

Bumscum by Bastardized Bottomburp March 22, 2003

Bumscrum 

When someone acts stupid you call them a bumscrum.

Stop eating my food you god damn bumscrum!

Bumscrum by Jillian MothaFucka Sidney October 1, 2011

bumcuming 

When your gay sexual partner sperm dribbles out of your anus after anus intercourse

Dave..I think I've just pissed out of my ass
John.. No its just ur bumcuming. Or should I say my cum out of ur bum
Dave.. Well least I won't get pregnant

bumcuming by mitch00uk April 10, 2015

bumcummer 

1. One who enjoys cumming in bums, either male or female

2. A cool yet douchebaggy person at times

"Tyler is such a bumcummer, him and his girlfriend do anal all the time"

bumcummer by Lil' Jizzer June 6, 2014

bumcum 

BumCum is after your partner has ejaculated in your ass, and then Cum starts dripping outa his ass hole.

eewww, omg my bf fucked my ass last night and then started drinkin my bumcum.

bumcum by Rush April 12, 2005

Bumcumber 

A gargantuum haemorrhoid of colossal proportions, protruding from the 'annus' like a shiny purple cucumber of the size which would have nuns doing press-ups in cucumber fields.

"Christ Nora, what the hell is that poking out of your arse?"

"It's me 'Farmer Giles' Edie, they're terrible bad at this time of year!"

"Shiver me timbers! I thought you were giving birth to a blimp - that thing makes a blue whale look like a Tic Tac!"

"Well, the doctor gave me some tablets, suppositories he called 'em, but for all the good they did I might as well have shoved them up my arse! Bloody bumcumbers!"

Bumcumber by Andrealphus June 27, 2010

bumsum 

The name given to an equation where each element is a value of bums.

Find x:
3 bums + 2 bums = x bums

This is a bumsum.

bumsum by Buttestitian October 7, 2006