1. "Well, perhaps when she's released from the burn center she'll see things more clearly."
Aye, can't quite place this one...
2. "VANDALEE ... SAY VANDALEE INDUSTRIES!"
Vandalay is George's pretend employer where he attended an interview for a job as a latex salesman. It's also his pretend name as an architect.
3. "You saying....you want a piece of me?"
"I'll drop you like a bag of potatoes"

Elaine takes on Frank Costanza's challenge. George was arrested for bootlegging.
4. "I simply want a sock that will STAY UP!"
Classic. Mr. Pitt wants new socks, Elaine gets about 12 pair but none are to his satisfaction.
5. "your a bad man...a very bad man"
Babou Bat when Jerry fails to forward Babou's immigration renewal application to him and Babou gets deported