etmn 

Stands for exhaling through my nostrils. Used to express more of a snicker than a full laugh, like a lol would express. It can have a sense of sarcasm to it.

”You're sooooo funny....etmn.”

etmn by MAS87 December 18, 2013

etmn 

Exhale Through My Nose. An alternative to Laugh Out Loud (LOL) that is meant to be more accurate because you don't actually laugh more of the time.

Bob: "Bro, are you making an urban dictionary entry for 'etmn'?"
Rucus: "...yes, I am."
Bob: "Omg, etmn."

etmn by Machi ಠಿ_ಠ February 28, 2019

ETMN 

An abbreviation in the vein of "LOL" and "LMAO" that is used when a phrase is funny enough to get a slight snort, but not funny enough for a burst of laughter.

"Bro, what did you think of that meme."
"ETMN, man, ETMN"

ETMN by AlThorReborn September 10, 2022

ETMNALSTU 

"exhale through my nose a little stronger than usual"

For when LOL just isn't accurate.

I totally ETMNALSTUed after I read that Dad Jokes link you sent me.

ETMNALSTU by DubiousDesigns May 8, 2015