Dirt"y (?), a. [Compar. Dirtier (?); superl. Dirtiest.] 1. Defiled with dirt; foul; nasty; filthy; not clean or pure; serving to defile; as, dirty hands; dirty water; a dirty white. Spenser.

2. Sullied; clouded; -- applied to color. Locke.

3. Sordid; base; groveling; as, a dirty fellow.

The creature's at his dirty work again.

4. Sleety; gusty; stormy; as, dirty weather.

Storms of wind, clouds of dust, an angry, dirty sea.

Syn. -- Nasty; filthy; foul. See Nasty.

Dirt"y, v. t. [imp. & p. p. Dirtied (?); p. pr. & vb. n. Dirtying.] 1. To foul; to make filthy; to soil; as, to dirty the clothes or hands.

2. To tarnish; to sully; to scandalize; -- said of reputation, character, etc.

• covered with or containing dirt or other unwanted substances
        Off like a dirty shirt!
  
• vulgar, or but not necessarily sexual in nature
        dirty word
  
• obscene or sexually lewd
        doing something dirty, dirty video, dirty talk
  
• anything considered taboo, sexual or otherwise
  
• To make something dirty, to taint.