Top definition
Laughing my butt off. A less dramatic version of LMAO.
I fell off the cliff and died.
LMBO!
by Kevin January 18, 2005
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2
alternate way of expressing extreme laughter, to the extent where ones burca falls from ones head. Not enough for one to 'laugh ones ass off', but enough for a burca to fall.
Sarah - "Tacco Tacco BURRITO!!"
Roxy - "That's so funny LMBO!!"
by ghandishoes June 26, 2010
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The vengeful act of crapping on a lover's chest while they sleep.

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3
a healthy alternative to lmao/lmfao to use in schools in case the teacher finds out you're passing notes and reads it to the whole class
claire: I am having my period.
abby: lmbo
by abbydskinnyass January 06, 2009
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The vengeful act of crapping on a lover's chest while they sleep.

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4
lmbo: samething as lmao unless the b is used differently. Ex. lmbo: laugh my boobs off, laugh my balls off or just laugh my butt off
person1:omg i fell down the stairs person2:lmbo
by Independent1011 January 14, 2010
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5
Laughing My Butt Off, used in IM conversations.
Pete: Did you hear the joke of the llama and the kangaroo?
Rose: Yeah, I did, lmbo
by Nanda June 29, 2006
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6
When working around the bases with the woman of your dreams you slowly whisper lmbo in her ear.
by DandyDon6969 February 12, 2010
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Soft and offensive. Just like you.

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7
Acronym for "Laughing my black off". Popularized by Mike Turpinseed Jr. in early 2013.
Something so funny, that you lose skin pigment.
"Mike Turpinseed Jr. is one funny mothafucka!"

"Lmbo!"
by denys petrov January 10, 2013
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