Reference to Philadelphia's location and status as the nation's second largest burned out ghetto/city. Detroit is clearly the reigning champion of ghettoness.
Chad - I'm going to Philly on business next week.
Brad - Be sure and take body armor...they don't call it Detroit on the Delaware for nothing.
Pour gun powder into your partner's ass. Repeatedly fist their ass til the powder is packed tight and deep like a good ol' colonial cannon. Stick a wick in your penis shaft. Light the wick. Plunge your cock into your partner's ass. CUMBOOM!!!
I used a Delaware Powder Mill to get some other guy's condom out of my wife's ass.
Jill: I gave Mitch anal for his birthday last night.
Jane: Wow! That is really generous of you.
Jill: Not really, he has a Delaware Boner
Jane: Wow, that's like getting a pair of Jimmy Choo heels for the price of Nine Wests!
Jill: OMG! I LOVE SHOES!!!
Jane: Totally, I am so wet now.