show out (v.)
(intransitive, colloquial, informal, slang) To display or present
oneself; represent. Wiktionary
To present oneself, especially in a public or performative manner.
The pop star always shows out with incredibly extravagant, often outrageous, outfits.
To perform some task with as much energy, enthusiasm, and
determination as possible.
It's going to be tough to win today's game, but if we all show out, we can accomplish anything! Farlex Dictionary of Idioms
intransitive. To become visible, discernible, or apparent; to be revealed. Now somewhat rare. In early use also: to project, stick out.
A little later the flicker of their camp-fire showed out.
intransitive. Originally and chiefly U.S. regional (southern and south Midland). = to show off. OED
He should have trusted his Star Wars-style instinct and his eyes and
ears on the three occasions his surveillance team has, in the
parlance, 'showed out'—the times when he has spotted or 'got on to'
the fact that he was being tracked and watched. Graham Johnson;
Druglord
We couldn't park too close to the gates without showing out, which
made identifying container numbers as they left the facility
impossible. Harry Ferguson; Kilo 17
The rabbits, too, were showing out among the grass, scuttling
about busily. Henry Kingsley; Ravenshoe
The two of us got on that dance floor and showed out. Our dance
moves were off the chart, and people started clapping for us and moved
off. Jeanette Tyson; Shhhhh...Don't Tell.....
"Mama, you need to whip that boy" He needs a good whippin'! You should
have seen how he carried on and showed out and pestered me!
Claude Eubanks; Bully in the Pulpit
Of course he didn't tell anyone, but he fumbled around at dinner and
spilled food on his clothes and blubbered when asked anything. It was
like he went into a stupor. Alex and Tom laughed at John and thought
he was just showing out and left it at that. T. Burns and D.
Burns; The Young Scots
"Nobody said anything about being undercover, I just don't feel the
need to show out. I'm not all about trying to get someone's
attention..." J.B.M. Patrick; Angelos Odyssey