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1.
Is to have a creepy laugh and creeper smile when trying to have a serious conversation
sally: I don't think we should get an abortion as this child may find the cure for aids

joe: bwhahahahaha

sally: quit bidening me this is serious
by twat waffle October 12, 2012
 
2.
To scare off intruders by shooting a firearm into the air.
Last night two guys were trying to break into my house. I scared them off by Bidening with my shotgun.
by The originalStreetgang September 05, 2013