To exaxagerrate, or otherwise faliciously enhance, the expression of a particular emotion.
I seriously hate techno dance parties... I think I'll up-play how tired I am from work.
by vrobert May 23, 2009
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this has no meaning. it's just a thing you say sometimes. also spelled as "who up playin wit they worm"
friend 1: who up playing with they worm?

friend 2: me🙋 ♀️
by bussyenthusiast May 07, 2021
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1. If something isn't working right....

2. To be cheating on your other half
1.AWW my cars playing up it won't start!

2.See that guy Bob...He's playing up on his wife...
by shaktisaurfang September 12, 2010
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When a certain induvidual cannot control their behaviour
Bro stop playing up, i cant help it been on the piss alday
by bpnz June 11, 2016
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to attempt to improve, to make somthing better, turn a bad situation into a good one

Nike is trying to play up their greedy image in a new advertising campaign
by youngkim March 30, 2007
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competing in a league that is above yours in skill level.
When 10-year-old plays baseball in a league for 12-year-olds he is playing up.
by Statsclimber September 22, 2010
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