Paddywhack means a beating or a temper.(noun)
An example of a paddywhack is a whipping of someone.
Paddywhack is defined as to beat or spank.(verb)
An example of paddywhack is to spank a child for discipline.
See paddywhack in Webster's New World College Dictionary
Origin: orig., an Irishman < Paddy + whack: as in “get one's Irish up”