The idiom "be lovey-dovey" means to behave in an excessively affectionate or romantic way with someone, such as hugging, kissing, holding hands, or using pet names. It is often used to describe couples who are very openly affectionate with each other, especially in public.
For example, if you see a couple kissing and hugging each other in public, you could say, "Look at them, they're so lovey-dovey."
This idiom is usually used in a lighthearted or playful way, and it can be used to describe any couple who is openly affectionate with each other, regardless of their age or gender.
Overall, "be lovey-dovey" is a fun and informal way to describe couples who are very affectionate with each other, and it is a common idiom used in everyday English conversations.
• The couple's lovey-dovey behavior made everyone else at the dinner party feel uncomfortable.
• Sarah and Tom's relationship seems to have lost its spark; they're not as lovey-dovey as they used to be.
• Despite being married for 20 years, John and Mary are still lovey-dovey and affectionate towards each other.
• My grandparents are always lovey-dovey when they're together.
• At the wedding, the newlyweds couldn't stop being lovey-dovey with each other.
• Whenever my sister and her boyfriend are around, they're always being lovey-dovey.