acting retarded or stupid; having a "moment"
"Jennifer, quit acting like a Tink tink!"
(Shakes head) "Poor Tink tink."
hyperbole, or exclaimation. used to break an ackwards or random silence.
Also from the spaceballs movie.
Mark: TINK TINK...
John: TINK TINK TINK TINK TINK TINK
"tink tink" is the sound that your eyelashes make when you bat them at someone, or during a cute situation.
"Could you pleases stop eating ass soup? tink tink"
Person 1: "Don't you look cute?"
Person 2: "Tink tink."