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The "xylo" is greek for wood
(slrpnk.net)
A lone figure at a party reflects that the rest of the revelers don't know that "xylophones" with metal bars are actually glockenspiels.
Chiming in for clarification: Literally it's "bell game" but the word's meaning is more like "bells that play" or "bells to play with".
Oh yah, play with mein bells
Aw man I just spieled on mein glock