Most often done when pretending something doesn't bother you that actually does.
The hip, less dramatic way of "being empathetic"
2)At an orchestra concert, I put my violin up too early so I played it off by scratching my chin with it.
2) To escape punishment or an uncomfortable situation by denying allegations of involvement, esp. by placing blame on another person
2) Mrs. Lowery accused me of stealing the test key, but I played it off on my home boy Reggie