This is from 8:18 "The One In Massapequa" so I am adding the needed (for a lot of you) SPOILER SPACE...
Okay, now that we got the spoiler space out of the way, here we go: In this episode .... just kidding, here's the real spoiler space.
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After Rachel asks Chandler if he has any ribbon, he looks in a draw and says something like, (paraphrasing) "Oh yeah, we've got satin, lace, velvet ... etc." Then, after giving a curious look, says, "I think my testicles might be in there too."
So at least Chandler knows he's acting that way, which almost makes up for it. It was another pretty damn funny line too.
John C