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When you are trying to get a girl and your friend is hitting on her when he knows you like her
Yo man, that's my girl! Why you gotta be thiefin'!
by vjcast13 January 12, 2017
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1. When you are borrowing something or stealing something from someone and you tell them
2. When you grab something in a sneaky manner (used as "thief")
1. I'm thiefin you're computer, man
2. Did you just see Alena thief that chair?
by Kailyn Schmidt October 16, 2007
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