Flash the Steel

To lift the bottom corner of a t-shirt, revealing the handle of a personal firearm tucked into the waistband, done in either a casual or rigorous manner. This action can be utilized to display power, exercise authority, or ward off potential offenders.

"Yo, dawg, those homies is steppin'"
"No worries, just flash the steel!"

"Last night I saw some hoods on the east side."
"Really? Did you flash the steel?"