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Definition funny of Gnagey:
The expectorated sludge or gunk from a metal head or a crust punk.
Are you going to clean out your gnagey from the bathtub?
Books about Gnagey:
Psychology of Discipline in the Classroom by William Gnagey (1970)
The Gnagey site and the Monongahela occupation of the Somerset Plateau (Pennsylvania archaeologist) by Richard L George (1983)