1 definition by Biff mcalister

anyone who grows out their beard and only showers every other day. You would most likely see an acoustic guitar guy walking their skinny bikes around bus stops with their hand-made satchels and loose comfortable clothes such as: wool caps, anything from urban outfitters , usually reek of marijuana , and may have a dog and of course, an acoustic guitar. Although they are called acoustic guitar guys, they might not always have an acoustic guitar.
Bus stop
"acoustic guitar guy": Hey bro you have any spare change for the bus?
guy: no i gave it to the other acoustic guitar guy
"acoustic guitar guy": thats cool man
guy: ya sorry
by Biff mcalister January 8, 2011
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