1: Double useless, something with no point at all. Comes off of "tits on" any male mammal, since males don't nurse the young; chickens of course don't nurse their young at all, so tits would be especially useless on a rooster.
You can tell that guy is a rich mother cluckin' son of a rooster cruiser, he complains about never having a good load, but you always see him in a chrome shop.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).