The One Where Old Yeller Dies - S2-E20
Monica: All right, I've got a leg,3 breasts and a wing.
Chandler: How do you find clothes that fit?
The One Where Joey Moves Out - S2-E16
Joey: What are you getting so bent out of shape for? It's not like we agreed to live together forever. We're not Bert and Ernie!
The One With the Baby on the Bus - S2-E6
Joey: Ducks is heads, because ducks have heads.
Chandler: What kind of scary-ass clowns came to your birthday?
The One After the Superbowl, part 2 - S2-E13
Chandler: Stick a fork in me, I'm done.
Phoebe: Stick a fork what?
Chandler: You know, like when you're cooking a steak.
Phoebe: Oh, I don't eat meat.
Chandler: Well how do you tell when vegetables are done?
Phoebe: Well you just, you know, you eat them and you can tell.
Chandler: Okay, then eat me, I'm done.
The One With The Prom Video - S2-E14
[After Chandler's just mocked Monica for being fat in an old home movie.]
Monica: Shut up, the camera adds 10 pounds!
Chandler: So how many cameras are actually on you?
Answer: The statements that she's contradicting (that it is common, it happens to every guy, and it's not a big deal), are the things that a woman commonly says to a man who is suffering from erectile difficulty, typically to assuage his bruised ego. However, most men do not believe that these statements are true, as evidenced by Chandler's outburst. He's so caught up in the proof that women are lying about it that he gives himself away.
Rooster of Doom