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

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.
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 25, 2012
