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1.
From the French "bâche", literally a canvas sheet.
To be turned down twice successively, or in a particularly harsh way (as if buried in two canvas sheets.)
John: Hey d'you hear about Samantha and Jake?
Josh: What about'em?
John: Well Jake asked her out and she turned him down. Second time this week!!
Josh: Wow, bash-bash!
by Jayjay-one June 09, 2011
 
2.
A person who is an over zealous, mindless, sensless, cunt faced, twat, ass lickin, shitter of a bastard, flosses shirts and vests, shits it of rides, carries peoples bags, licks ass, east shit, drinks piss and is an overall twat of a bitch fucker cunter.
Bash bash is a person who shits it off rides, carris ppl bags, nd is scared of his own shadow!!!
by evilbashkilla123 July 10, 2008