nina with me like a guard

To stay strapped with the heater at all times.

Friend: what’s that bulge in your shirt??

Doug: bro I keep that Nina with me like a guard!

Nina with me like a Guard

To have in ones possession a 9mm pistol at all times.

Friend 1: Bro this place is kinda dangerous, what if we get robbed?
Friend 2: Don't sweat it bro, every city is dangerous when I'm in it, I keep that Nina with me like a Guard!

tucked like underarmor

To conceal carry a firearm at all times.

Friend: bro, I’m nervous what happens if somebody tries to rob us?

Friend: don’t worry, I got that heater tucked like underarmor.

Tucked Like Underarmor

To conceal a firearm in ones waistband so snug that it resembles the tight fit of Underarmor.

Dylan: Hey man I'm kinda nervous we might get robbed...
Doug: Don't sweat it bro, I got that thang tucked like Underarmor.