Chaucer: Yes, but they certainly understand us. [Pause] Well, maybe not you.
Even in his intro, as Wat is delving into angrish, he's just sitting there looking at him with a rather bemused expression.
When he asks William why he's throwing the match and William explains, he walks off with a resigned "I had rather he was blind."
The scene in the tavern betting against the French. Roland, the voice of reason, refuses to take the risk until one of the Frenchmen declares that among the reasons an Englishman can't win the tournament is that the Pope is French — at which point Roland fires back that the Pope may be French, but Jesus was English, and the bet is on.
Chaucer teaching Will how to dance, with Wat as his dance partner.
Chaucer: And one and two and three and four and Wat doesn't lead, he follows like a girl.
The best part is that right after Chaucer sings the first line, there's a beat as Wat just stands there, trying to get a grip on his anger. He then pulls back his fist and it cuts to Chaucer with the cloth up his bleeding nose.
Wat going for Adhemar and Chaucer's reaction. I'm sorry, it's just funny:
"Well played, my lord!"
And before that, he calmly shoved Wat over to keep him from fighting Adhemar, cutting Wat off mid-rant.
"It's called a lance. Hellooo?
Wat delivering Jocelyn's gift to Will.
When Jocelyn asks Will what he'll wear to banquet that evening.
Jocelyn: Then we shall create a sensation, if I dress to match.
Jocelyn: Sir, I only laugh, just to keep from weeping.
Bishop: Beauty is such a curse. Pray your years come swiftly, pray your beauty fades, so you may better serve God.
Jocelyn: I do. I pray for it all the time. Why, God, did you curse me with this face?
And the priest offering his holy ring for Jocelyn to kiss...
Jocelyn: Oh that is lovely.
In a meta, Hey, It's That Guy! kind of way during the discussion of possible banner designs, hearing Roland suggest sticking with Sir Ector's stag, then agreeing with Wat's suggestion of a lion.
The deleted scene where the group unexpectedly meets Chaucer's wife. They run into him walking around naked at night, and immediately assume he gambled away his clothes again. He then has his wife crawl out of bed, and Wat begins to charge at him. His wife then introduces herself and cheerfully guesses who each of Chaucer's friends are. Keep in mind that this entire time, Chaucer and his wife are butt-naked, causing Kate to cover Wat's eyes. And as everyone leaves to give the couple some privacy, Wat gives this line:
Wat: (apologetically, to Mrs. Chaucer) I thought you was a prostitute!
Chaucer: Get out!
Then his wife says, "they seem much more fun than those pilgrims you were with last year."