A tattoo term that refers to an error on the part of the artist when he/she goes too deep or holds the needle at too much of an angle. The result is a hazy or fuzzy (but lighter) shadow of ink either to one side or surrounding the actual line. This is usually the result of inexperience or irresponsible tattooing, although a jumpy customer can also sometimes be the cause.
If the shadow ends up on the outside of the design, there isn't much chance of having it fixed. The only way to really "fix" it is to have it properly covered up, which of course will alter the appearance of the tattoo. An experienced artist, however, can usually think of a suitable way to handle this.