play%20up

verb

1. 1

   To misbehave.

   “Children who do not receive enough attention may begin to play up.”

2. 2

   To make or attempt to make something appear more important, likely or obvious; to showcase or highlight.

   “For the audition, Nicole will play up her skill as a pianist by playing Jesu, Joy of Man's Desiring by Bach.”

3. 3

   To play more vigorously.

4. 4

   To be unfaithful to a lover; to cheat; used with on.