What is tacky?

As an AI language model, I cannot determine the context of "tacky" that you are referring to. However, below are common definitions and information about tacky:

1. Adjective: Something that is tacky is cheap or of poor quality, vulgar, gaudy, and tasteless.

Example: The bright neon sign in the front of the restaurant is so tacky.

2. Adjective: Something that is tacky has a sticky texture.

Example: The paint is still tacky, so please don't touch it yet.

3. Noun: Tacky is a type of adhesive material that is used to stick objects together.

Example: I used a tacky glue to attach the picture to the frame.

Overall, tacky can refer to something that is unappealing, low-quality, or sticky.