Lovey-Dovey British American disapproval informal slang
This expression usually uses in the romantic comedies and on own love lives. We can use this idiom in positive or negative way, depending on the feeling of lovey-dovey.
I had gone for lunch with my parents, but it was pretty embarrasing with a couple getting lovey-dovey a couple at front of us.
The couple at the front row kept getting lovey-dovey with each other while we tried to completely ignore them and watch the film.
To become better
People's arms linked together to show the intimacy between two people.
A child with great talent and intelligence will lose those qualities over time.
The phrase came from the early 1700s to the 1800s. Sometimes when the dove bird is used as a symbol of love and rhymes with love as well, so it's just a mixture of these two words. At the end, "y" is added to make it sound funnier.