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the blanket that one uses to cover their penis while masturbating. The blanket can be used as plausible deniability if someone walks into the vicinity.
Jeff: Aww man, my sister caught me wanking in the basement last Saturday.
Tony: That's your fault bro, that almost happened to me but I covered it up with a masturblanket and made it look like I was just laying down watching TV.
by BRAPS July 24, 2012
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The blanket one masturbates into/on or uses to wipe up cum, to prevent cum stains from getting on their furniture.
I was having company over so I threw my crispy masturblanket in the laundry machine, after cumming onto it one last time.
by ChippyLongcockings May 06, 2019
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