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Most typically used as a noun to refer to oneself or others when totally drunk and can't remember a thing.
It can also be used as an adjective to describe onself or others when totally drunk.
"Man, I was totally Johnny Blackout last night. I don't remember a thing. What happened?!"

or...

"Damn, I was Johnny'd last night, fuck!"
by JohnnyBlackout October 09, 2008
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Oct 31 Word of the Day
1. acronym for Laugh Out Loud + sob -- an expression for something that makes you lol and cry at the same time.

2. acronym for Laugh Out Loud, Son of a Bitch. An expression of bitter anger over something funny.
That fatal clown car accident made me lolsob-- clown cars are funny but my best friend was driving.
by duenna9 October 12, 2009
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