Well,depends on whose doing the talking now doesn't it (the victors that is).
Towards Vargr (from My time in the Marches", a mercenary of Second Skin INc/ Fulacin): (spits) "Daerrgh!" (fine Vargr epithet for inedible meat/ filth/ excrement).
Towards defeated foes (from Aslan to any other):
"You shoot like women, and your Family line has ended here!"
From Ithklur(viewing the carnage afterwards, remember to laugh as you say this to the players):
"That * was fun * while it * last* ed."
From my TNE campaign #1 (93-96), the Captain PC Sean"Lucky-Dice" Egan's shine off to Guild's men & TEds alike:
"Hasta la Vista, Looooser!"
And a classic from "Bored of the Rings"(Harvard Lampoon press) always struck me funny. "Pity stayed his hand. It was a pity he'd run out of bullets."
And, "Why did you shoot him? He could've told us plenty!"--PCs querying NPC why he caught up with their quarry and blew him away rather than say "Stop or I'll shoot" (RCES rules of engagement #1256)
Irish-Solomani NPC,laconically, "He just wouldn't be told."