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A phrase used in a sarcastic manner in order to make the person you're talking to feel small/insignificant. Can also be used when being informed that you're incorrect about something.
1) Tom: "What's the time?"

Will: "8 I think."

Laura: "It's 9 actually."

Will: "Soz, don't steal my dinner money!"

2) A twelve year old chav tries to mug you..

Dave: "Mate, don't steal my dinner money."
by Mahnig March 31, 2010
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