quitter

noun

1. (Jamaica, regional, uncountable)Matter flowing from a wound or sore; pus.

   “Therfor Sathan [...] smoot Joob with a ful wickid botche fro the sole of the foot til to his top; which Joob schauyde the quytere with a schelle, and sat in the dunghil.”

2. (alt-of, alternative, uncountable)Alternative spelling of quittor (“fistulous wound at the top of a horse's foot”).
3. (obsolete, uncountable)Scoria of tin.
4. One who quits, as:

   “Winners never quit and quitters never win.”

   “Don't be a quitter — hang in there!”

   “I have never been a quitter. To leave office before my term is completed is abhorrent to every instinct in my body. But as president, I must put the interests of America first.”

   “Well, they underestimated Hartlepool, and they underestimated me because I am a fighter and not a quitter!”

5. One who quits, as:

   “Quitters are winners! If you can't quit on the first try, hang in there and try to quit again!”

6. (archaic)A leaver.
7. (obsolete)A deliverer.

verb

1. To suppurate; ooze with pus.