Little known slang term for toilet paper usually of the softer variety. Comes from the fact that Gandalf from Lord of the Rings has a long white fluffy beard.
by Martin Grondin April 27, 2005
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If during oral sex you ejaculate into you partner's mouth and they spit the cum onto your chin.
I totally gave him the Cumming of Gandalf the White! That's what he gets for cumming in my mouth!
by Crotch Club November 20, 2007
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