Nap"py (?), a. [From 1st Nap.] 1. Inclined to sleep; sleepy; as, to feel nappy.

2. Tending to cause sleepiness; serving to make sleepy; strong; heady; as, nappy ale. [Obs.] Wyatt.

Nap"py, a. [From 3d Nap.] Having a nap or pile; downy; shaggy. Holland.

Nap"py, n.; pl. Nappies (#). [OE. nap, AS. hnæp cup, bowl. See Hanaper.] A round earthen dish, with a flat bottom and sloping sides. [Written also nappie.]

• Tightly curled or twisted; kinky.
       Example: Nappy hair is relatively common among those of African descent.
  
• (UK) (AU) An absorbent garment worn by a baby who does not yet have voluntary control of its bladder and bowels or by someone who is incontinent.