The title of the Nirvana uberhit, Smells Like Teen Spirit, was taken from an interesting occurance in lead singer Kurt Cobain's life. While dating Tobi Vail, drummer for Bikini Kill, Kathleen Hanna (vocalist of Bikini Kill) was aiming to poke some fun at Cobain (at the time, she was dating Dave Grohl, Nirvana's drummer). It just so happens that Vail wears a deodorant called "Teen Spirit"; and so, Hanna wrote upon the wall one evening at a party "Kurt Cobain Smells Like Teen Spirit". Considering the incredible fame of the song, it is interesting to note that it is named for an underarm deodorant with a cutesy name. Whether this helped to inform the message and lyrics of the song I'll leave to you.

Source: My ultra-hip girlfriend, who enjoys reading SPIN magazine (which enjoys quoting Cobain biographies like Heavier than Heaven by Charles R. Cross) and listening to both abovementioned bands.