Body part where a flag hangs in flag football (3)

I believe the answer is:

hip

(Other definitions for hip that I've seen before include "Trendy or stylish, like fruit of the wild rose" , "Side of body - very sophisticated" , "Body part; cool" , "In modern slang, cool and sophisticated" , "Rose fruit; start of cheer" .)

I've seen this clue in The Washington Post.

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