Means essentially the same thing as oh dang, but it is infused with additional win and excellent. It is, by most authorities, considered far superior to its predecessor.
Fool 1: Your mother is so obese that she generates a gravitational field which modifies the orbit of satellites in deep orbit.

Fool 2: LMNO DANG!
by Xander Strike October 26, 2007
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Laugh my nose off
You guys are welcome for this new word
Hey bro that made me lmno
by Marie,Tommie,andkenzareawesome December 12, 2019
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I can't believe he thought she was interested lmno
by Dnttrdonme May 20, 2017
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I can’t believe I failed!”
“LMNO you suck
by Shitlover699 April 27, 2018
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lmno can also mean laugh my nalgas off
texting sister: LMAOO

sister: what did you just say?

me: oh oh i mean lmno

sister: that’s my girl
by beka12 October 21, 2020
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"laugh my nose off" from that alphabet tiktok
abcdefg hi jk lmno 😉
by sasha👻 December 29, 2020
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