>>Ah, what is the softer version then? I would probably use "putz" here. Or nimrod, loser, etc.
>
>One doesn't call someone who's just had one over him a "loser" or a "putz" surely. If anything it's the subject of the joke who's the putz. I don't know what a nimrod is in this context. The word you used was appropriate in a way. I'd be more inclined to say "You swine!"

Hmmm, swine. I do think loser would work fine here, kind of generic really, but your right regarding putz; probably slightly more harsh than would fit the situation.