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negative bad luck.
mostly used as a comeback to be an asshole or something, also used to tell someone you dont want to do something.

or just throw it out there when ever cause you can! XD
e.g 1
John: hey, whats up?
Me: negbl

e.g 2
Mum: can you take out the rubbish
Me: negbl

e.g 3
Dylan Tarlintion: oi check this out
Evan Taylor: no
Dylan Tarlintion: do it or ill rape you
Evan Taylor: negbl

e.g 4
Leho Harrell: hows the wife?
Evan Taylor: NEGBL
by P0L!C3 February 03, 2010
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