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2.
To throw up in the middle of a party and make a complete dueshbag of yourself. Also someone who pretends to drink beers but just sips on them and then fakes drunk.
Dude honestly you gotta stop davising all the time its really making me sick.
by Lilpete December 11, 2006
 
1.
The act of dissapearing during a crowded event such as a party or family dinner to have sex.
Hey where is Tim and Molly? Oh they are Davising in the bathroom.
by Steveo1986 December 13, 2013