Bill and coo

Pro Tip 1/3

Romantic Gesture

Use 'bill and coo' to describe affectionate, romantic actions, especially between couples.

At the park, many couples sat on benches, billing and cooing.

Pro Tip 2/3

Not Literal

'Bill and coo' is metaphorical, referring to human affection not actual bird behavior.

They're so in love, always billing and cooing, not unlike lovebirds.

Pro Tip 3/3

Positive Imagery

The phrase creates a warm, positive image of people being close and loving.

At the reunion, the elderly couple billed and cooed like young sweethearts.