Bill-and-coo

the parts of a bird’s jaws that are covered with a h-rny or leathery sheath; beak.
the visor of a cap or other head covering.
a beaklike promontory or headland.
to join bills or beaks, as doves.
bill and coo, to kiss or fondle and whisper endearments, as lovers:
my sister and her boyfriend were billing and cooing on the front porch.
noun
money owed for goods or services supplied: an electricity bill
a written or printed account or statement of money owed
(mainly brit) such an account for food and drink in a restaurant, hotel, etc usual us and canadian word check
any printed or written list of items, events, etc, such as a theatre programme: who’s on the bill tonight?
(informal) fit the bill, fill the bill, to serve or perform adequately
a statute in draft, before it becomes law
a printed notice or advertis-m-nt; poster
(us & canadian) a piece of paper money; note
an obsolete name for promissory note
(law) see bill of indictment
see bill of exchange
see bill of fare
(archaic) any doc-ment
verb (transitive)
to send or present an account for payment to (a person)
to enter (items, goods, etc) on an account or statement
to advertise by posters
to schedule as a future programme: the play is billed for next week
noun
the mouthpart of a bird, consisting of projecting jaws covered with a h-rny sheath; beak. it varies in shape and size according to the type of food eaten and may also be used as a weapon
any beaklike mouthpart in other animals
a narrow promontory: portland bill
(nautical) the pointed tip of the fluke of an anchor
verb (intransitive)
(of birds, esp doves) to touch bills together
(of lovers) to kiss and whisper amorously
noun
a pike or halberd with a narrow hooked blade
short for billhook
noun
(ornithol) another word for boom1 (sense 4)
n.
v.

a single dollar: can i borrow a couple of bills until tomorrow? (1910+)
a hundred dollars: i laid out four bills for that shearling (1920s+)
a hundred yards of gain in football: coach jackson told me i needed two bills to win (1990s+ football)

see:

clean bill of health
fill the bill
foot the bill
sell a bill of goods