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1. a not yet fully grown child who takes on the style and mannerisms of a middle-aged woman, possibly by wearing a tightly shorn perm and/or a dingy, over-sized bathrobe and who assumes adult responsibilities such as preparing meals and distributing drinks

2. a dramatic archetype described as a young girl in the absence of a mother, who is wise beyond her years, and has a perplexing relationship with the father figure
Young Liz Lemon sets off my mog-dar
by stankylegz143 January 02, 2011
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Acronym for the mother of the groom in a wedding (Mother of Groom)
Traditionally, the MOG and FOG host the rehearsal dinner of a wedding.
by VMc9 October 18, 2017
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Chicago slang. Replacement word for m*therf*cka. Can be a friend, enemy, or random person
This mog got a young joc perm.

Who hired these mogs?
by Joneszilla December 13, 2016
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Irish phrase to describe an ugly person usually, os else just a friendly insult. (Mistake Of God)
See that guy at the match yesterday?
Ya what a mog..

Shut up ya mog!
by clairemcs February 25, 2009
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someone who is completely self-absorbed, one who will only fall in love with themselves, someone who is a legend in their own mind and stars in their own movie of life. one who is rude only because they are envious of the actions and successes of others, someone who lacks many friends, other than themselves.
i pulled a mogs by sitting and staring at my picture for 15 minutes, by myself
by sarss261 August 10, 2010
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A sound you make when you don't want to go to work
"mog," Marcy muttered as she sat down at her desk for another 8 hour work day.
by Kilarina August 08, 2012
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