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2.
When one masturbates in the shower
I love to showerbate in cold water
by triangle_boy June 23, 2011
 
1.
The Act of furious Masturbating during a shower
Damn Showerbating isnt funny anymore
by Wilitus July 12, 2005
 
3.
When one goes to take a shower with the intention of both showering for the sake of showering, and also using the opportunity to masturbate.
Dude, I could hear Josh in there. He totally ditched us to showerbate.
by Xiwt March 09, 2012