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1 definition by Larry O'Fresh

 
1.
The act of masterbation whilst in the shower.
Shwank, shwanking.
Wanking in the shower
Tom: Hey Lewy, you look really refreshed today!
Lewy: Yeah man, just had a shwank, felt so good.
Will: Wtf is a shwank bro?
Lewy: When you have a wank in the shower!
Will: Mad!
by Larry O'Fresh May 08, 2011