shoot your cuffs

shoot (one's) cuffs

To flaunt something. Displaying one's ornate or elaborate cuffs was a common practice among medieval noblemen. I know you're happy about your promotion, but try not to shoot your cuffs, OK?
See also: cuff, shoot
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

shoot your cuffs

pull your shirt cuffs out to project beyond the cuffs of your jacket or coat.
See also: cuff, shoot
Farlex Partner Idioms Dictionary © Farlex 2017
See also:
References in periodicals archive ?
You can even shoot your cuffs while shirtless, a symbolic exercise signaling that you're really shirty.
It reminds me of the way Christopher Moltisanti found out he was getting his button on "The Sopranos." Shoot your cuffs and look sharp.