Slang for glossy top coat-for your nails. Used by many in the nail art community and was coined by Cristine Rotenberg of the popularYouTube channel Simplynailogical
Example one:
After we the polish dries I'm going to put a glossy taco on it.
Example two:
Person one: What kind of glossy taco did you use?
Person two: I just picked up a random one from the drug store.
When you apply a top coat to your nail polish so it's smooth and shiny
"I suppose you don't have to put on a final coat of glossy taco, you cloud leave it a little textured but you know me, girl, I'm all about that glossy taco."