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Joe: ur a bitch
Sally: No im not
Joe: Oh ok mb
by Joeness August 07, 2007
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Jun 21 Word of the Day
A person with an outwardly dominant, masculine, or aggressive personality, but who also enthusiastically takes on the submissive or "bottom" role in the bedroom.
"I'm tough, Mike! I never give an inch! I'm partial to taking a few though..."
"Ah, you're a real pipehitter."
by Skeletalchemy June 15, 2021
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2
MB: (Medium Boto)- Someone who evolved from β€œSB” (Small Boto) to β€œMB” . A β€œMB” has more than 1 chic and wants to lose their v-card to any girl, but no one wants to fck him .
MB: "I like lose my v-card before I leave ."
C1: "Why?"
MB: "Cause I like practice before I come there."
C1: "What about c2, thas yo chic."
MB: "Naw, she’s just another girl, I still finna talk to her tho for practice ."
by ") . July 07, 2010
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3
MB stands for megabyte, or 1 000 000 bytes.

Not to be confused with:

- Mb: Megabit (8 megabits = 1 megabyte)

- mB: Millibyte (theoretical)
- mb: Millibit (theoretical)

- MiB: Mebibyte (1 048 576 bytes)
- Mib: Mebibit (1 048 576 bits)

Capitalization matters!
That guy: the file is 5 mb
Me: You mean 5 MB?
That guy: ya whatevr
That guy: ur pedantic
Me: ...
by Shirayuki-hime October 14, 2007
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4
mb = Maybe.

A shortening that has occurred due to lazy internet gamers not being arsed to type in 3 more letters.

Often used in conjuntion with 1337, leet, omg, wtf and other internet gamer words.
Conversation between two gamers:
1st Gamer: So did you own him?
2ndGamer: No his rail aim was uber leet :(
1st Gamer: You gonna hack his computer then?
2nd Game: mb
by Sam Fold April 13, 2003
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5
Morning Boner, Usually when a man wakes up in the morning and has a massive erection.
Man, I've got a huge MB right now!
by MurrDan August 04, 2005
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