One who whiffles, or frequently changes his opinion or course; one who uses shifts and evasions in argument; hence, a trifler.  [1913 Webster]

 One who plays on a whiffle; a fifer or piper.  [1913 Webster]

 An officer who went before procession to clear the way by blowing a horn, or otherwise; hence, any person who marched at the head of a procession; a harbinger.  [1913 Webster]

 The golden-eye.  [1913 Webster]