I thought they were epically grand, myself.
But I can just picture it:
"Take that, Saruman, you old tweezer!"
"What was that?"
"It's called, 'ad-libbing'."
"No, I mean, what on earth is a 'tweezer', and why did you call him that? We've already come to grips with the fact that we're going to be doing a lot of editing in post..."
"Twat...Geezer...Tweezer."