bill and coo

== English == === Verb === bill and coo (third-person singular simple present bills and coos, present participle billing and cooing, simple past and past participle billed and cooed) (of birds such as pigeons and doves) To coo and rub beaks as a prelude to mating. (of romantic couples) To exchange loving and affectionate behaviour, such as caresses and kisses. ==== Translations ==== === See also === lovebird lovey-dovey