When you open someone's asshole and insert your ball sack completely inside. Any sexual activity that then occurs (masterbation, handjob, blowjob) is then considered a bing job.
Nick- Oh man I got a nice bingjob last night
Dan- Nice man did you get your balls in deep?
Nick- Ohh yea
Dan- Nice man did you get your balls in deep?
Nick- Ohh yea
by bingjobcreator March 22, 2010
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