I like to sniff my own hand before a handshake, but only if I’ve been scratchin’ my butt. Oh, hi there, buddy, glad to see you!
Brodie: After all he’s done to you, you should still kinda stick it to him.
T.S. Quint: How do you propose I do that?
Brodie: You stinkpalm him.
T.S. Quint: Stinkpalm?
Brodie: You take your hand and stick it in your ass like this. You been walkin’ all day and you’re nervous, so no doubt you’ll be sweaty as hell.
T.S. Quint: You should see yourself right now, a grown man with his hand down his pants.
Brodie: Yeah i probably look like my old man. So you shake hands with the guy, “Hello Mr. Svenning how have you been?”
T.S. Quint: Whats the point?
Brodie: You know how long it takes for that smell to come off? Scrub all you want, it’ll stick around for at least two days. How does he explain it to his colleagues and family? They’ll think he doesn’t know how to wipe his ass properly.
T.S. Quint: Meanwhile you yourself are left with a hand that smells like shit.
Brodie: Small price to pay for the smiting of one’s enemies.
Mallrats (1995)
http://www.imdb.com/title/tt0113749/quotes?item=qt0341988