1 definition by A Flying Turtle

Top Definition
"Laughing my butt off"

"Laughing my boobs off"

"Laughing my balls off"

They're all implying the same thing; you're laughing incredibly hard. It's often a replacement for "lmao" (laughing my ass off) for people who prefer not to curse in their interweb acronyms.
Person A: *tells a funny story*
Person B: LMBO
Person A: wait, but you're a girl, you don't have balls!
Person B: it can also mean "laughing your boobs off"
Person A: what if you have neither? (somehow)
Person B: then it can mean, "laughing your butt off"
by A Flying Turtle June 24, 2010

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