Did not have any luck with my usual technique of taking the lyrics quoted and googling on them. BUT - taking the phrase "Buy me a drink and I'll sing you a song" turned up some interesting non-related links.
Here's a bit of punk angst and millennial navel gazing on my own beloved Clement Street in San Francisco:
http://www.fuzzyrobot.com/ventilator/march/drunk.html
Google on "Buy me a drink" and we find the Virgin Prunes - an Irish band that doesn't get enough credit for what it accomplished:
http://virginprunes.com/html/recurring.html"Buy me a drink, sing me a song" actually appears in Mary Jane's Last Dance - that necrophilia-tinged ballad from Tom Petty:
http://www.ugcs.caltech.edu/~harel/cgi/pag...?Mary_Jane.htmlFun, but not the answer you wanted. But the song you are looking for is now in on my list. If I do stumble across it or luck out and find the lyrics, I'll post back to here.