Christine from Simply Nailogical on YouTube uses this word to define the glossy top coat she paints on her nail when she's done with holographic nail art.
I'm going to put a glossy taco on that to seal it in!
tattoo, usually put on in prison, often poorly drawn, poorly executed shit that the wearer is overly proud of. Usually a redneckasshole in there somewhere.
Nice tacks, man. I was tackin for a while when I was down, but I spelled some slit's name wrong, and Doo cut off my fingie.