Top Definition
Monsters Under the Bed Syndrome. Used in poker discussion forums to denote play that is overly fearful of those very good hands that are rarely dealt.
Ever since I lost to that royal flush, I've been having a case of the MUBS.
by Cy N February 20, 2006
Derived from the Sefic language meaning "miss you babe". Historically noted to be said by a Bosnian princess.
"I haven't talked to you in so long, MUB."
by Dr. Clapperton, Global Relations. November 22, 2007
Misogynistic Untermensch Bastards: Men who think that Women are only a life support system for a vagina.
MUBs who support gender inequality, genital mutilation of women and selective abortion of female babies, etc.
by Scared Feminine August 13, 2010
to rub your hand up the crease of your buttocks and around your anus, then ambushing an unsuspecting victim with the same hand ih their face (whilst shouting 'mub' at them)

mub is bum backwards
boasting to a friend :"I leapt out and gave him the mub, he was discusted".

to mub someone
by brewlio April 29, 2007
a person who is too lazy to get dressed into regular day clothes and lounge around the house is a bum. a mub is someone who looks cute in doing so.
Bob looks good as he mubs around the house on saturday.
by mandapanda January 17, 2005
A man who has stubby fingers ... alluding to another apendage ... Mubs = Man Nubbs
Dude look at that guys hands, he's got serious mubs!!
by OregonGeorge September 28, 2008
to masturbate in a public place such as a public restroom, bus, airplane, hotel lobby, and/or friend's grandmas hosue
My friend did a mubs at the Starbucks drivethru last night
by SNEEEEvES August 23, 2010

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