Meaning of the word "bobble hat" in English

What does "bobble hat" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

bobble hat

US /ˈbɑː.bəl ˌhæt/
UK /ˈbɒb.əl ˌhæt/
"bobble hat" picture

Noun

a knitted hat with a bobble on top

Example:
He wore a warm bobble hat to keep his head cozy in the snow.
The child looked adorable in her new pink bobble hat.