b.o 

Short for body odour, usually used when someone is sweaty and beginning to smell e.g. a locker room.

"Mannn, this stinks of b.o bruhhh"
"Ew it does wtf"

b.o by SwirlyCupcakes July 23, 2018

B.O 

B.O short for Body Odor usually used in negative context

Dude you smell like B.O

My bad I didn’t take a shower this morning

B.O by Gotakeashower…please April 30, 2023

B.O

a lovely, smelly, fat Malaysian donuts which has a cat called Diego. also has a beautiful shaped head with a beautiful toupee.

i play so much seige that i am B.O

B.O by Nickthebiggy April 13, 2026

B.O. 

<noun> Slang abbreviation;

Literally, Body Odour. The smell that it created when bacteria feeds on sweat hence making it stale. Often unpleasant.

SIMON: "Charles, you have B.O. Go and wash your armpits!"
CHARLES: "I have taken your offensive statement and unmitigated imperative into account and have calculated an appropiate answer to your utterance: No."

B.O. by Stuart Fletcher January 18, 2005

B.O. 

body odor
when u dont wear deodorant n ur armpits smell like shit

johnnys u reak man wear some deodorant uve got b.o.!

B.O. by someone December 17, 2003

b.o. 

A person's natural, unaltered odor, particularly that which emanates from one's underarms. B.O. can smell like brie, diesel engine, sukang paombong, or freshly mowed grass, to name a few similar odors. High school locker rooms and frat houses are locales notorious for the smell of lingering B.O.

A wifebeater is an excellent way of showing your sukang paombong B.O. off, since it does not cover your armpits.

b.o. by Dylan Dude December 13, 2007

B.O. 

Short for "blackout," as in drinking entirely too much alcohol, sometimes combined with other substances. Can be used as a verb, a noun, or an adjective. On a scale of 1-10, B.O. stands for all numbers 11 and higher, and is almost always associated with belligerence and depravity. Much like alcohol itself, the term is used heavily in Wisconsin.

Verb: Let's get Rumplemintz and B.O. tonight!
Noun: That kid is a walking B.O. every weekend.
Adjective: I was completely B.O. last night, don't remember anything.

B.O. by General Corn Wallace March 5, 2011