Hinky dink reminds me of this scene from the movie The Fugitive:
Marshal Bobby Biggs:
It's hinky, Sam. I mean, this guy is a college graduate. He became a doctor. I mean, he ain't gonna go through here with all this security. Hinky.
Deputy Marshal Samuel Gerard:
Biggs, what does that mean, hinky?
Marshal Bobby Biggs:
I don't know. Strange. Weird
Deputy Marshal Samuel Gerard:
Well, why don't you say strange or weird? I mean hinky, that has no meaning.
Marshal Bobby Biggs:
Well, we say hinky.
Deputy Marshal Samuel Gerard:
I don't want you guys using words with no meaning. I'm taking the stairs
Marshal Bobby Biggs:
[sotto voice] How about bullshit? How about bullshit, Sam?
But evidently, it's also the name of an old supermarket chain in Nebraska. Where Gretchen went.