Top Definition
Two or more mattresses lying adjacent to each other. May be embedded (pun intended) into bed frames. Originated in 05C.
Also known as MonstreBed in some cases.
Patrick: Guys, MegaBeds are now declared illegal.
Patrick: However, MonsterBeds are okay.
by Oleh Zaychenko October 27, 2007
A large amount of people sleeping in one bed.
Oh My Dad, when we were rollin' monster bed last nite, I was straight up pig sweating.
by K49 December 14, 2009
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