I'm just guessing that maybe you are referring to a male name Kaz, or Kazu, which is normally an abbreviated version (nickname) of longer names such as Kazuo, Kazuhiro, Kazuhiko, Kazutoshi, etc., etc., there are many male names that start with kazu-.
Definition of Quatrain. A quatrain is a verse with four lines, or even a full poem containing four lines, having an independent and separate theme. Often one line consists of alternating rhyme, existing in a variety of forms.
noun, plural quails (especially collectively) quail. 1. a small, migratory, gallinaceous game bird, Coturnix coturnix, of the Old World. 2. any of several other birds of the genus Coturnix and allied genera. 3. any of various New World gallinaceous game birds of the genus Colinus and allied genera, especially the bobwhite.