kissing cousin

noun
1.
See under kissing kin.
2.
something closely related or very similar:
a textile that is a kissing cousin to nylon.
Origin
1935-40

kissing kin

noun
1.
any more or less distant kin familiar enough to be greeted with a kiss, as a cousin (kissing cousin)
Slang definitions & phrases for kissing cousin

kissing cousin

noun
  1. A relative close enough to be kissed in salutation, hence anyone with whom a person is fairly intimate: The two species will often prove to be kissing cousins, for they'll crossbreed/ You guys talk like kissing cousins
  2. A close copy: He had a kissing cousin of Montgomery's mustache (1940s+)