bill and coo

US /bɪl ənd kuː/
UK /bɪl ənd kuː/
"bill and coo" picture
1.

卿卿我我, 亲热

to show affection by kissing and caressing, often in a public or overly sentimental way

:
The young couple was billing and cooing in the park.
那对年轻夫妇在公园里卿卿我我
I can't stand to watch them bill and coo all the time.
我受不了他们总是卿卿我我