The definition of a piker is slang for a very frugal or extremely cautious person.(noun)
An example of a piker is a person who will only buy the cheapest of everything.
See piker in Webster's New World College Dictionary
Origin: orig., prob. one from Pike County, Missouri, then applied to Missourians generally: reason for later uses obscureSlang a person who does things in a petty or niggardly way; esp. one who gambles or speculates in an overly cautious way
See piker in American Heritage Dictionary 4
Origin: Possibly from Piker, a poor migrant to California
Origin: , after Pike County in eastern Missouri.
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