bstmn 

Blew Snot Through My Nose (In conjunction with LMFAO)

I was told that my ex-wife was attracted to another fat woman.

LMFAOBSTMN (wrecked a keyboard) re:fark.com

bstmn by Carl Judd February 5, 2005

Batmn 

It’s a word used instead of lmao or Lol .BATMN stands for “Blew Air Through My Nose.”
Most people don’t laugh when they read or see something funny the just do a little chuckle or a blow of air through their nose hay didn’t exactly turn in to a laugh. It’s very accurate compared to lmao and lol.

“Sends funny meme”
Omg hahaha Batmn

Batmn by Hailey is smart November 1, 2018

BATMN 

When LOL is a bit too much, but you still thought it was funny, BATMN aka "breathing air through my nose" is a great response.

Good joke! I totally BATMN right there.

or

Her: What's the difference between a guitar and a fish?
Me: I don't knowm what?
Her: You can't tuna fish.
Me: BATMN

BATMN by BATMN-man November 12, 2018

batmn 

An acronym for 'blew air through my nose'. For the times you read a text and it's funny, but you don't actually laugh in real life.

*on text*

Person 1: finishes a sort of funny story

Person 2: batmnnnn love it

batmn by 123456543210 November 3, 2018

btmn

Means “Breathing Through My Nose” to refer to those moments where someone sends a picture/video/meme/post that is mildly funny so you don’t lol or lmao, but simply just exale quickly through your nose.

Friend: *sends mildly funny meme*
Me: *not very amused* BTMN

btmn by M4ngm November 3, 2018

BATMN 

"Blew air through my nose" used when something is said funny. It is a new trend that is related to "lol, lmao, lmfao, ROFL" and all types of shit yall say when something is funny, hell if I know what yall use nowadays. Also it kinda looks like the name Batman.

"Don't let this distract you from the fact that Mr. Krabs sold spongebob's soul for 62 cents."
"BATMN!!"
"BATMN? are you trying to say Batman with your non spelling ass"
"Nah bro I meant BATMN aka Blew air through my nose"
"Ohh.... Well that's how we usually breathe... Sometimes I pray for this generation"

BATMN by Don't use your real name bruh November 4, 2018

BATMN 

Blew Air Through My Nose

The twit was so funny I actually BATMN.

BATMN by xpil October 16, 2018