What is Thinks?
1.
The act of believing you are something special or that you will get away with something petty just to help your pathetic ego.
Look at your gay ass, barb wire around the arm tattoo. You think!
See
2.
Saying thank you in a snooty way, just replace the a with an i and drop the you
Girl 1: Your hair is nice
Girl 2: Thinks!!!
See