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1) The act of becoming aggressive to ones peers/enemies, usually whilst under the influence of narcotics and/or alcohol.

2) To threaten a rival male and/or extort for large sums of money.

3) Getting lemon.
"Don't get Jif Lemon"

"That geezer was getting proper Jif Lemon"

Melvin: "Someone keyed up my Sean Goater"
Me: "Savage mate, did you find out who it was?"
Melvin: "Yeah mate, i found out where he lived, phoned him up and got Jif Lemon on him .... he came round later that day with 250 quid."
by Poonoob July 26, 2010
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