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1.
word that chavs use to show disagreement, confusion, or their complete inability to integrate any meaningful words into their meagre vocabulary.
Non-chav: "Piss off!"
Chav: "ERDIT kidda!"

Teacher: "You'll need a thermometer for that."
Chav: "ERDIT! Wots one of them then?!"
by Smithy & Alex September 26, 2005
5 2
 
2.
1. To have heard something already before.

2. Just used as random saying such as innit, innit.
E.g.

mantha - You fat slag!
Tiff - Erd it ya divy bitch.
by henri_x_lloyd August 21, 2005
2 2