Dialectal (chiefly Scottish/Irish, usually plural) ‘haunches’; also historical U.S. politics ‘a conservative person’.
Definitions
(chiefly plural) The haunches or the position of squatting on the heels. She lowered herself onto her hunkers to examine the seedlings.
(historical, chiefly US) A politically or socially conservative person; a supporter of maintaining the status quo. The hunkers in the legislature opposed every progressive measure proposed.