I love it. It's hilarious. Also, I think it's just randomly generated for every time you load up the main page. It simply chooses the words it was given at random.
Actually I think it changes when a new post happens anywhere on the board.
Also, you could probably expand it to something like: "Draw W grils X months pragnent with Y babbies in Z hours/mins/secs"
I feel partly responsible for this. Not because I request that, but because I made a post or two making fun of that formula that always shows in up request threads. http://pregchan.com/d/res/24142.html#q26982http://pregchan.com/d/res/24142.html#q26989