Showing Out 

To flamboyantly show a positive presence for oneself or a group one is related to.

Damn, Ricky is showing out in that candy Lambo.

Mike Conley showed out for The Grizzlies tonight with 31 points.

Showing Out by brentigon August 28, 2018

Showing Out 

The act of being foolish, ignorant and just plain dumb in public.

Look at Greg storming off and cussin after that little misunderstanding
Yeah, he's showing out.

Showing Out by You know me, The Kid! May 20, 2011

Showin out 

similar to Showing off. Usualy done infront of a large croud to try and look cool.

You see that nigga Tom over there showin out?
We in the club and we showin out.

Showin out by Snoop[G] December 13, 2008