someone who is particulay fat and/or retarded(not in the offensive way:)
aylas fat chubby sister is a lardo-bum
bUM bUM bE dUM bUM bUM bU dUM dUM
Rihanna: Bum Bum Be Dum Bum Bum Bu Dum Dum
A group of lads: Generally around 4-6 members of a group that find degenerate, sexist and outright narcissistic humour funnier than your nan's clit.
'See those losers over there'
'Yeah, they look like bum babies'
I ate too much chilli last night and spent all this morning giving birth to Bum Babies.
A Mike pickle bum is an extremely hard find. You should recognise one by his hairy chest and big doe eyes. A Mike pickle bum is very loving and caring and if you should find one, love him with all your heart because you won't find another. A Mike pickle bum loves to travel and explore the world. You should prepare yourself for adventure and potentially sleeping rough occasionally. A Mike pickle bum loves to be on the look out for treasure as well and will probably idolise Indiana Jones. However through all of his travels and stories he has to share, he adores snuggling up on sofas with a good film and a cat asleep on his lap. A Mike pickle bum will treat you so well and love you forever. He will make you giggle and cuddle you rotten. He will surprise you and treat you to surprisingly good lasagnas. A Mike pickle bum is the most special thing you will ever meet.
"I met a Mike pickle bum!" She whispered gleefully.
"No! That's wonderful!" Her friend exclaimed through gritted teeth, the deep shade of green envy flushing through her cheeks.
When your underwear that isn’t meant to be a thing turns into one and you can feel the slow wipe every step you take
Catholic mother: “Mary! Pull out your wedgie I can see your bum flosser!”
The action that occurs when one bum touches another, creating a double bum.
See those guys over there, they're doing the double bum.