Measure is a slang term used to describe someone who acts overly concerned with fairness, justice, or morality—usually in a backhanded way—to justify their own self-serving actions or to criticize others for being too strict or "uppity." It's often used to mock people who use principles as a weapon rather than a guide.

Example:
"Man, that teacher is so measure about the rules. She's always calling people out for little things, but she's the first one to cheat on her taxes."

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