noun: (obsolete) One who whiffles, or frequently changes their course or opinion.
noun: (obsolete) One who argues evasively; a trifler.
noun: (obsolete) One who plays on a whiffle; a fifer or piper.
noun: (obsolete) An officer who went before a procession to clear the way, by blowing a horn or otherwise; hence, any person who marched at the head of a procession; a harbinger.