You could probably get some good ideas from Magic: The Gathering cards. I know somebody mentioned Magic before.
Just search for "Goblin" at anycraze.com

My personal favorite is from the card Goblin Offensive: "They certainly are."

that was me for the gray ogre :)
Yours is hilarious, BTW ! I know the humour has certainly increased in the later expansions. But I haven't really followed, since Urza's Saga :-/

Dialogues propositions...

-"You lot and whose army?"
-"you know, Bob, you lot ARE the army, really"

-"you've got arrows sticking in your eyes!"
-"Yeah, I thought it might amuse Gruntar, but it hurt quite a bit..."
-"the arrows? I should have guessed..."
-"No! the arrows are fine! That was the thinking that hurt..."

-"Any human thinks he is challenge to Bothar?"
-"Yeah! I do, you ugly...*" BASH
-"Any human thinks he is challenge to Bothar?"

-"Hmmm, sorry, no really, I won't stay, my mother is boiling and my milk is awaiting me for dinner..."
-"Has boils, yes? niiiice... Have her come for my dinner."

-"You know, they say that orcs are twice as strong as oxes and half as dim, only they are merely as strong as an ox, but don't have but a quarter of its wits really."
-" Dunno who they were, but they probably encountered two at a time..."

-"I am only slow at understanding, Bashing is fine..."

-"You see this pile of bones o'er dere? dey are humans! Mostly! Dere is probably also der dog in dere, but can't remember. Dat was a long time ago. More dan twenty minutes..."

-"You think I got funny speech, methinks you got funny face. WOn't mater after I bashed you long enough..."

-"Want to play "right-hand-left-hand" wid me? Yeah? (Claps hard over opponent's head) You lose." Froideval copyright

-"Yeah, wid no teef, you talk just like me. Wait till I get me club..."

-"Me mudda always told me not to play wid food, but you started..."

-"Don worry, I'll just use you sword as a can opener, when you're done wid it..."

Can't think of any more just right now... Will give you a second helping after a good day's work...

"Try not to piss me off.'"

"DIE you hideous creature!" - knight
"Over my dead body!..uhh" - orc

"I fart in your general direction." - Monty Python

"Your mother was a hamster and your father smelled of elderberry" - Monty Python

(holding club behind back and looking up at very large opponent)
"Quick! Duck!"

(shouts back at the ranks)
"More club wax! Mine is starting to wear!"

(points)
"Hand me that head will you; I need to think..."

(looks amazed at his blue club)
"Viagra do make club work longer!"

"Can we do this quickly, coz my Slargh is double parked."

Good luck with selecting! [wink]

CipherCraft

Hey, stop hitting my knuckles with your face!

-"What I hate wid humans is dat you hafto shell dem off before eating. Takes too long..."

-"Remember dat you no hungry when you dead. No sorry, no hurt, no thirsty. And I am hungry. Now CHAAAAARGE!!!!!"

-"Are you threatening me? Only it would be more threatening only if you stopped shivering like dat..."

-"Barney! Mine was too small! Can I have an arm from yours? Or the eyes, if you don't have them?"

-"Your beer tastes a little of piss, but I'll have another bucket..."
"uhhhh... we don't have any beer anymore, I am afraid. And that wasn't a BEER bucket you drank..."
"No? then it must be a bucket of piss that tastes a little of beer. Let's have another one anyway..."

-"Lookadat! the big kitty is smiling! At least, the corners of its mouth are going up and it's showing its teeth... Believe he wanna make friends?"

-"What do you think happens if I pull this..."
"NOOOOOOOOOOOOOOOO*chuck*..."

-"What is that big eye-thing that is eyeing us, do you reckon?"

-"I'm so bored I could count my flies... o-ne... uhhhh. what comes next?..."

-"This chicken tastes a little of human. Anything tastes of human if you hungry enough..."

-"nighty-night, boy. Now close your eyes and go to sleep... *BUNK* *BUNK* *BUNK* OK, open your eyes, go to bed without hitting the walls and close your eyes again."

-"nighty-night, good knight..."

-"Me got secret weapon 'gainst trolls. Dem fick as a short plank. Tell dem to hold der breaf."
-"And...?
-"And what? dat kills dem fo' shoo!"

" look at 'im wiyt his wee 'lil' boots"

I just came back to read through the forums and it seems this thread is still going!

Thank you for all the extra comments, I will be getting a few drunken friends around this weekend to record them :)