A:You farted !
B:Oh, sorry man. but was that me or your pretty ass that you are so proud of. I am not saying you did it but I heard it from down there. now, let's see what and who did it from the smell. you go ahead check it. its your own shit anyway.
A: no man, I don't need to check that nasty stuff.
B: nasty is what you ate last night.
これはいわゆる「ノリツッコミ」というやつですよね。その辺はアメリカではけっこう共有しているような気がします(僕のまわりだけかもしれませんが)。具体的な例が思い浮かばないのですが、僕の場合はフラれたらとことんノッて、最後に、Hey, what are you talking about?でしめます。けっこううけますよ。