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1. making things, events, or actions normal people dismiss as trivial or insignificant into excuses to be upset, uncooperative, childish, or stubborn.

2. A person who habitually overreacts.

3. A person who is purposefully childish with the intent of illiciting a reaction (sometimes funny).

4. An immature over reaction in retaliation of an undesired outcome.
1. Susie is upset the teacher didn't call on her after answering three times in a row. She's petty.

2. I really don't feel like going over Xenobia's house today, you know shes mad petty.

3. She told me if I change the game I might have a chance so I turned the channel from Knicks to the PGA tour.

4. "Oooooooh so you want to stay out all night?" *changes locks on front door*
by Ch1ef July 20, 2016
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2
When someone overreacts over the littlest things
someone gets mad because the microwave door was left open. That's being petty
by Dj Ellis March 21, 2017
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4
When someone takes a small subject and blows it out of proportion.

At times, making something otherwise insignificant into something bigger to suit their own agenda.
Daisy: Man, that girl is so petty. She can really make a mountain out of a mole hill.

Informed Annie: Oh Jesus, the AFA is boycotting Ford just because they posted ads in gay magazines. How petty!
by Little Lauren June 08, 2005
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6
someone who does something in an attempt to hurt another person but really just makes themself look like a fucking idiot
McKinley keeps subtweeting me, she's so damn petty
by Pettygal1234 July 22, 2017
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7
someone who dose things on purpose to get a reaction out of someone
lucy is so petty
by notgnirrak May 11, 2016
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