in the song "Bounce to This" by RBL Posse, there is a line in the second verse where no one seems to know what the correct words are for the last two words of this rhyme. Here is a portion of the currently available lyrics online:
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We gives a f**k about a copper, gettin our propers
By burnin cops like ???? chopper
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You can hear the verse around 1:35 into the following video:
http://www.youtube.com/watch?v=z6SdfqYYFjQ
The line should say "By burnin cops like Nag Champa"
Nag Champa is a type of incense, so one would burn it without thinking twice...