Bendy describes something that bends or curves easily without breaking. A plastic ruler is bendy: you can curve it into an arc, and when you let go, it springs back to its original shape. A stiff wooden ruler, by contrast, might snap if you tried the same thing.

Bendy materials are flexible and often somewhat elastic. Rubber bands, thin branches, pipe cleaners, and wire are all bendy. Your body has bendy parts too: your spine, fingers, and elbows all bend so you can move in different directions.

The word often appears in everyday descriptions: a bendy straw has a flexible section that lets you angle it toward your mouth. A bendy toy snake can coil into different positions. A road with lots of curves might be called bendy, though people more often say winding or curvy for that.

Sometimes people use bendy to describe a person who's very flexible, like a gymnast who can bend into impressive positions. “She's so bendy she can touch her head to her toes!” The word has a casual, playful feeling to it, and you'll hear it more in conversation than in formal writing.