blue dog in English dictionary Blue Dog Meanings and definitions of "blue dog" (US, politics) A member of the Blue Dog Coalition, founded in 1994, of conservative and moderate members of the Democratic Party. noun (US, politics) A member of the Blue Dog Coalition, founded in 1994, of conservative and moderate members of the Democratic Party. more Grammar and declension of blue dog Blue Dog ( plural Blue Dogs) Blue Dog (plural Blue Dogs) more blue dog Sample sentences with "blue dog" Declension Stem Match words all exact any Try again Available translations French Spanish Authors