no one's ever done that before and lived
In response to the Men's Health article entitled "The 30 hottest things you can say to a naked woman" (link), Defective Yeti has this hilarious post: "The 30 least hot follow-ups to the 30 hottest things you can say to a naked woman".
Any use of the word "hot." Especially: "You're so hot" or "Ever since we ate that dim sum I haven't felt so hot."