1 definition by Big Boip Raji

Top Definition
the act of knowingly pursuing a girl with a boyfriend with total disregard for the feelings and emotional well being of said boyfriend
guy 1: pittsburgh pirates right fielder garrett jones stole that dudes girlfriend!

guy 2: he does that all the time! i guess thats why they call it "Jonesin'"
by Big Boip Raji January 31, 2011

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