mib

mint in box; used to describe item for sale on ebay, for example

"mib" items are generally more expensive

by Mike January 12, 2004

MIB

a mentally ill brother who’s poor mental health negatively impacts their siblings, causing said siblings to adopt a MIB liftestyle thus inducing tramua that makes them mibful

My brother punched a hole in the wall then stole my parents car, he’s such a MIB!

by mibala June 13, 2023

mib

An idiot using Mibbit (a popular web-IRC service) to connect to an IRC chat without changing their name and usually ask idiot questions.

*** mib_asdq32 has joined #channel ([e-mail])
mib_asdq32: you moderators are NOOBS!!!
operator: another frikking mib.

by NTAuthority June 19, 2010

MIB

An abbreviation for make it bacon. Usually used in reference to a larger girl. Mib 2.0 is a younger fat girl (under 21 years of age... usually blonder aswell), the second generation.

Wow that larger girl is a real mib.

by RIPOM April 3, 2009

MIBs

Mad Itchy Balls.... You just have to scratch

" I got MIBs like a mofo "

by Dr. Seuss May 13, 2005

MIB

MILF IN BOOTS i.e. mum I'd like to fuck wearing boots.

Commonly seen during the colder periods of the year, the milfs will wear knee high boots with jeans, to stay warm while maintaining sex appeal.

A sexy mum in winter wearing boots is a mib

by satanico pandemonium September 19, 2012

MIB

internet acronym for "mind is blown" - the phrase people say when something is contrary to what they thought. Commonly used with sarcasm.

Person1: Peanuts aren't actually nuts. They are legumes.

Person2: whoa, MIB.

by jumpysho February 1, 2010