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A trashtoo is blue smudged outline of a tattoo on girls. Its usually a butterfly, flower, or some other sappy girly shit. The blue line is blurred into the colored tattoo.
Ashley: Did you see that new tattoo that Brittney got last week?

Lindsey: You can hardly call that a tattoo. Its more like a trashtoo!
by Dousman dudes January 26, 2010