What does "double-jointed" mean?
Having one or more joints (usually those of the fingers, arms, or legs) able to bend more than is normal; possessing hypermobility of one or more joints.
adj ·Rare ·Advanced level
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"Tom is double-jointed, isn't he?"
Having one or more joints (usually those of the fingers, arms, or legs) able to bend more than is normal; possessing hypermobility of one or more joints.
Tom is double-jointed, isn't he?
Pronounced /ˌdʌbl̩ˈd͡ʒɔɪntɪd/.
PIE word *dwóh₁ From double (adjective) + jointed (adjective), from the fact that a body part of a person with the condition appears to have two joints bending in different directions.