strut one's stuff

strut (one's) stuff

To act or perform with brazen, ostentatious confidence. I swear these dogs know they're being judged—look how they strut their stuff! After a year of training, he went up onto the stage to strut his stuff.
See also: strut, stuff
Farlex Dictionary of Idioms.

strut one's stuff

Behave or perform in an ostentatious manner, show off, as in The skaters were out, strutting their stuff. This expression uses strut in the sense of "display in order to impress others." [Slang; first half of 1900s]
See also: strut, stuff
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • strut
  • strut (one's) stuff
  • strut one’s stuff
  • strut stuff
  • strut your stuff
  • show off
  • swear down
  • swear
  • make (a) great play of (something)
  • make great, much, etc. play of/with something
References in periodicals archive
This means that the ability to strut one's stuff on two legs has likely evolved several times among different types of animals.
Early Biped Fossil Pops Up in Europe