Naco
Mexican slang for tacky
A pejorative term used to describe someone with bad taste or who is vulgar.
Ese naco siempre viste con ropa de colores brillantes y chillones.
That tacky guy always wears bright, loud clothes.
No seas naco, comportate en la fiesta.
Don't be tacky, behave at the party.
Ay que naco eres, no tienes buen gusto la verdad
Geez, you are really tacky, you don't have good taste.