“You were safe on a troll. Anyone wanting to mug a troll would have to use a building on a stick.”

“Trolls have 5,400 words for rocks and one for vegetation. "Oograah" means everything from moss to giant redwoods. The way trolls see it, if you can't eat it, it's not worth naming it.”

“I'm not the world's greatest expert, but I would have thought that the wizards, witches, trolls, unicorns, ... broomsticks and spells would have given her a clue?' - when J.K. Rowling insisted she wasn't writing fantasy.”

“Shut up sergeant. You're a free troll. That's an order"Sam Vimes”

“[Rincewind] drew his sword and, with a smooth overarm throw, completely failed to hit the troll.”

“Where's my daddy?Is that my daddy?It goes, "I fink, derefore I am. I fink." It is Sergeant Detritus the troll!That's not my daddy!”

“But if you must know, your moon here is rather more powerful than the ones around my own world.”“The moon?” said Twoflower. “I don’t under-““If I’ve got to spell it out,” said the troll, testily, “I’m suffering from chronic tides.”