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1.
The act of scratching, painting, or spraying an image of a dong onto a wall or surface in a public place.

Generally popular with adolescent boys, the dong depicted can come in a variety of shapes and sizes, although it can often be hard to determine whether or not it is circumsized!
6 months ago all the desks in classroom 6 were new, now half have been dongerized!
by Ryd June 26, 2006