Defn: The yaffle. [Prov. Eng.]
YAFFLE
Yaf"fle, n. Etym: [Probably imitative of its call or cry.] (Zoöl.)
Defn: The European green woodpecker (Picus, or Genius, viridis). It is noted for its loud laughlike note. Called also eccle, hewhole, highhoe, laughing bird, popinjay, rain bird, yaffil, yaffler, yaffingale, yappingale, yackel, and woodhack.
YAGER
Ya"ger, n. Etym: [G. jäger a hunter, from jagen to chase, hunt.]
(Mil.)
Defn: In the German army, one belonging to a body of light infantry armed with rifles, resembling the chasseur of the French army. [Written also jager.]
YAGUARUNDI
Ya`gua*run"di, n. (Zoöl.)
Defn: Same as Jaguarondi. [Written also yaguarondi, and yagouarondi.]
YAHOO
Ya"hoo, n.
1. One of a race of filthy brutes in Swift's "Gulliver's Travels." See in the Dictionary of Noted Names in Fiction.
2. Hence, any brutish or vicious character.