bm

a bitch move or bowel movement. context will decide the official definition.

Kayla: Wow that was a huge BM by Claire.
Chris: Do you mean bowel movement or bitch move? Your sentence was pretty hard to decipher.
Kayla: Bowel movement. Claire just took a huge dump.
Chris: But I though girls didn't poop?

by thecabbageninja September 26, 2011

BM

Big Man

Used in south Dublin area to show gratification to their peers.
“Gary did you see Johnny last night what a BM”
“I know Jordan such a BM”

by The BM March 31, 2019

BMS

“Brushing my shorts” similar to smh however it is far more complex and has a greater meaning than bmp (however very similar)

Hey I forgot my popcorn
“BMS I am idiot”

by Shortsbrusher March 8, 2020

BM

BASTARD MENOPAUSE - when partner leaves someone due to them going through menopause

going through a BM rn

by imabittystoned January 9, 2023

BMS

Big Metal Squirrel

Yo did you see that BMS over there? Heckin wild! So metal!

by Metalest of squirrels December 15, 2018

BM

Baby momma

say that broad your BM

by SanScuro April 10, 2016

BM

Abbreviation for trve kvlt Black Metal

Have you listened to the latest Naglfar album, it was trve kvlt BM

by Omnimaniac April 19, 2015