The definition of a jag is a sharp, tooth like projection, or is slang for uncontrolled actions.(noun)
Jag is defined as to cut into notches or to tear unevenly.(verb)
An example of jag is to rip a piece of cloth into rough pieces.
See jag in Webster's New World College Dictionary
Origin: < ?
See jag in American Heritage Dictionary 4
Origin: Middle English jagge.
Origin: Origin unknown.
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