dont know if this has been repeated but my favorite line is Chandler's line
"sometimes i wish i was a lesbian, did i say that out loud"
"you have to stop the Q-tip when there is resistance"
and later in season 7 to Joey when joe dresses up like a 19 yr and joey asks whether he looks 19 or what
Chandler's reply 'yes in the scale of 1 to 10, with ten being the dumbest a guy can look, you are definitely 19".