MRB

Stands for: Men-Are-Bastards

A mindset in which a female or male temporarily or permantely believes that all members of the male gender are bastards, often due to a viscious break-up or negative relationship.

Jen was cheated on so now she's in a MRB mindset.

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MRB

Acronym for "mad random boner" -archaic, inf. Circa early 2000s

Greg would have been on time for his next class, but he got an MRB at the end Home econ, and had to stay seated for a few minutes to conceal it while it went down

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mrb

Mega Raging Boner, referring to yourself

Well i have a MRG baby!

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