Grease mephitis in the sewers. This exchange pops in to my head at least once a day for some reason:
"What did the wizard say this river was called again?"
"I believe he called it 'the SYOO-ER'"
"Well what ever it is, it's impressive, and it tastes great"
Something about the cadence and delivery from the voice actors just make me laugh every time. Honestly, even for the most random of characters, all the voice actors absolutely killed it in this game.