乳ちち繰くる

godan verb (-ru), intransitive verb

have a secret affair; meet secretly and flirt

Rare, somewhat dated term for a clandestine romantic or flirtatious relationship. Often seen in the compound 乳繰り合う (ちちくりあう).

See also: ちちくり合う

• 二人ふたりは人ひと目めを忍しのんで乳ちち繰くっていた。

  The two were having a secret affair, hiding from others' eyes.

• あの二人ふたり、こっそり乳ちち繰くり合あってるらしいよ。

  I hear those two are secretly flirting with each other.