The Cliché: Trash talk is the prerogative of any action hero worthy of the name. If they're feeling particularly flash, they'll dole out an apposite one-liner before putting the villain to bed, although there's nothing in the rulebook that prevents our designated badass from giving a bit of verbal to an unhearing corpse...
Examples: Arnie is the king of this particular cliché, with his unique delivery of the English language only adding to the fun. Think, "Let off some steam, Bennet", "I'm the party pooper", "Stick around", "You're luggage" and of course, the mighty, "You want to be a farmer… here's a couple of acres."
Elsewhere, Bruce Willis' "Yippie kay-ay motherfucker," is pretty iconic, whilst Robocop swaps wit for menace with, "dead or alive, you're coming with me." Passenger 57 deserves a mention for Wesley Snipes telling his assailants to, "always bet on black", and when it comes to sheer volume, it's difficult to top Gerard Butler bellowing, "THIS IS SPARTA" in 300.
If It Was Real Life: You've just killed a man. Your hands are shaking, you're drenched in sweat… you're probably too busy vomiting to come up with anything particularly witty.