To spoil the appearance of.
To tarnish (reputation, character, etc.); to defame.
A moral defect; a character flaw.
A small flaw which spoils the appearance of something, a stain, a spot.
To mark a surface with such images.
Drawings or words drawn on a surface in a public place, usually made without authorization.
Informal inscriptions, figure drawings, etc., as opposed to official inscriptions.