This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 毱 is uncertain. It visually combines 毛 (hair/fur) with 匊, but the component relationship is unclear.
The outer 毛 suggests something related to hair or fur, but the overall meaning is unclear. Picture a mysterious fur-covered object with an unknown purpose.
For けまり, imagine a fluffy fur ball used in an ancient game of kemari: けまり sounds like 'kemari', a traditional Japanese kickball game, and the fur 毛 component fits the ball.
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