Guy in bar: You wanna buy some pants?
Obi-Wan: You don't want to sell me pants.
Guy: I don't want to sell you pants.
Obi-Wan, to the cloners: Your pants are very impressive. You must be very proud.
Jango, to Obi-Wan: Always a pleasure to pants a Jedi.
Owen: Where are you going?
Anakin: To find my pants.
Episode III - Pants of the Sith
Anakin: Artoo will be along in a few moments and then... See? No pants!
Dooku, to Anakin: You have pants. But you don't use them.
Palpatine to Anakin, who has Dooku in a defenseless position: Pants him now.
Anakin: I shouldn't.
Palpatine: Do it.
And some more from the OT:
C-3PO: I don't think he likes pants at all. No, I don't like pants either.
Yoda: I cannot teach him. The boy has no pants.
Yoda: Your pants. You will not need them.
Lando: Having trouble with your pants?
Han: No, no problem. Why?
C-3PO, going Irish: I never knew I had it in me pants.