For a long time, when people said "thank you" to me, I'd deliberate get thew reply wrong and say "You're vellum." Which, taken literally could actually be a reasonable threat on the "you're dead meat," track (it would literally mean I wanted to skin you and turn your skin into parchment.)
It's a bit like how I learned that "gunny" comes from the Sanskrit "ghoni" meaning "sack", so a gunnysack is a sack sack.
This reminds me of a very long joke (I think it was something along the lines of "Jack Nicholson describes his date". As the person describes it he uses the f-word AGAIN and AGAIN and Again, as an adjective , a noun, an exclamation and so on. Finally he gets to the part where he is describing the very end of the night when he and she had sex he gets almost to the end and the other person goes "And then what happened" to which he replies "Whadda f**ing think, f**happened, we made love." (the joke being he uses the f-word in every way EXCEPT its literal meaning."
