(1):
(n.) One who whiffles, or frequently changes his opinion or course; one who uses shifts and evasions in argument; hence, a trifler.
(2):
(n.) The golden-eye.
(3):
(n.) One who plays on a whiffle; a fifer or piper.
(4):
(n.) 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.