bounc ‧ y /ˈbaʊnsi/ BrE AmE adjective
1 . a bouncy ball etc quickly moves away from a surface after it has hit it
2 . a bouncy surface is made of a substance that makes people move up and down when they are on it:
The new bed is nice and bouncy.
3 . someone who is bouncy is always very happy, confident, and full of energy
4 . hair or material that is bouncy goes back to its shape when you press it
—bouncily adverb
—bounciness noun [uncountable]