FNE

(Abbreviation) Forcefully Nose Exhale (Verb)
Used to represent the act of finding something funny but not funny enough to "laugh out loud", chuckle or even grin but perhaps funny enough to share that it had the effect of you exhaling forcefully out of your nose.

Jenny sent Mike a witty meme that she enjoyed. Mike understood the joke but it only gave him mild satisfaction so he quickly replied "haha FNE".