happybutton
nounUK /ˈhæpiˌbʌtən/
US /ˈhæpiˌbʌtən/
A happy button is a button you press to make something fun or cheerful happen.
She pressed the happybutton on her toy and it played a happy song.
OTHER MEANINGS
2. A button on a website or app that shows happy or positive content.
Click the happybutton to see cute animal pictures.
3. A small button a child wears that lights up when they feel happy.
His happybutton glowed green during the party.
4. A playful name for a person who always brings joy to others.
Grandpa is our happybutton—he makes everyone laugh.