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1.
backwords it means nigga, also known as an african american used by Ashley Harris.
aggiN what?
by Kendall February 25, 2003
 
2.
(read it backwards!)
a method of sayin nigga dat the white man can use without offendin anyone
'sup Aggin!
or
foe shizzle my aggin bizzle
by Shane25 December 05, 2006
 
3.
Annoying...as in aggraveting. Pissing one of...
Yo this bitch is aggin me, always hitting up my phone at 2 oclock.
by Lawrence November 09, 2003