Green’s Dictionary of Slang

(US) a flatterer; one who makes alluring but empty promises.

1912		Bulletin (Sydney) 11 July 16/1: Taft, or one of the people who supply Taft’s ammunition, has invented a new word for this Yankee Presidential campaign – ‘honeyfugler.’ Roosevelt, of course, is the honeyfugler, i.e., a gent. who promises an unattainable Paradise, stocked with wine and bees’-juice.
1930		Shoemaker 1300 Words 28: Honeyfoogler — One who gets into another’s graces by flattery [HDAS].