I was looking something up in a dictionary and noticed that the definition for sodomy was "unnatural sexual intercourse." I promptly checked the publication date, which was '95. I thought, if that's the definition for sodomy in your dictionary, then it's probably time to get a new one.
and then I got the idea for this "game." (if it has already been done, then...shut up.)
very simple: the only rule is that your line must start with "if" (unless it has an "intro," see no. 1) and it must be followed by a conclusion. the conclusion does not have to start with "then" (see 4).
(1) Railroad crossing, railroad cars: if you can spell "that" without any Rs, then you realize this riddle only works verbally.
(2) if you've already heard that bird is the word, then I need not repeat myself.
(3) if you are a blue-eyed boy with a great body and perfect features, then can I have your phone number? :D
(3.5) if you can see this, then you've highlighted this text. why?
(4) if hell freezes over, some crazy shit's gonna happen.
anyway, I'm sure you guys can come up with cleverer/funnier lines, and I look forward to your replies.