B&M

v. Bitch and Moan. When a person can not stop voicing their opinion after losing an argument. Could also be bitching and moaning.

God!! We told you that if you told another lame joke we'd tie you up and put you in the trunk! Stop all yer
B&M(ing) you little girl!!

by EviLalDo August 30, 2005

B&M

Bolliger & Mabillard - rollercoaster designers famous for fast, smooth, twisted track with the characteristic ROAAAAR! sound, caused by polyurethane wheels. Affectionately referred to by coaster enthusiasts as "Beamers".

Check out that new flying B&M that Six Flags New Jersey just built!

by Sarabellum1976 September 4, 2003

B M

Abreviation for Bowell Movement (Verb I guess) Certainly not to be used anywhere near to "yo baby's Mama" and one poor sole has suggested.

Eating a balanced diet will result in healthy floating B.M's; not the bowl stanging sinkers most gangsters coil in dimly lit, fetid tiolets.

by Priz Biz Sage June 24, 2005

B&M

is a type of shifter in cars for both manual and automatic transmission. usually used in high performance cars, such as modified mustangs and camaros. you can find a B&m shifter usually being used by a guy with a mullet.

damn boy, that is a sweet ass car. you got a B&M shifter in that thing?

by troy October 29, 2003

B&M

A large shop that sells discount goods

I can buy all kinds of cheap stuff at B&M

by Wagster July 18, 2006

B M

Acronym for Big Momma. Stands for middle aged women who are obese and rude to little white girls.

Dang, why is B M so mean to little Marissa and Jenna?

by bdong January 1, 2011

B M

Baby Mama

by angelface June 3, 2003