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1.
To play air guitar enthusiastically in a repetitive manner, accompanied by half-assed guitar sounds in a way reminiscent of Beavis from Beavis and Butthead.

Works best with metal or hard rock.
Dude, why are you beavising to an Alanis Morisette song?
by Spokmage June 27, 2007
7 1
 
2.
To change your facebook profile picture to the picture of Greg Beavis because he's a real G. He's on the way to becoming famous.
https://www.facebook.com/event.php?eid=261230917251747
Everybody is beavising these days, I might join in the trend.
by NWA is back October 17, 2011
3 2
 
3.
simply another word for pulling but in a more sly manner and may be frowned upon
No beavising on the bus!
by Bobby Dazzler July 04, 2003
1 5