Top Definition
A blanket that is used during sex to keep love juices from getting on your bed/sheets.
"You've forgotten the sex blanket, now there is semen all over your bed."
by Mallory and Zach June 06, 2006
(N) a bed cover at all non-five star hotels
Sometimes referred to as a sperm blanket
Upon arrival at their motel, jack and nicole threw the sex blanket off their bed.
by aschluss April 04, 2010
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