Oops, I had already forgotten about that song. I was wondering whether the song was referencing the cafe, or if 'diesel dyke' is an actual expression among lesbians (or, negatively, at lesbians from outside), or whether the alliteration just worked for the song. The first is unlikely, in retrospect. And Google suggests that the middle theory may be the correct one.

Yes, I do dearly love the Diesel and its wonderful women who render unto me the cooofffeeee with a smile. And its men. Who also give me coffee, I mean. Sell it to me. They do. All of them.

They need fives and tens, please.