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1.
acting as a "hill jack" or "hillbillie" or "mountain person"

"hill jacking" is a verb.
"You have been hill jacking around all day!" or "I do not accept hill jacking in this household!"

by Phillip James June 29, 2008
 
2.
(verb): the act of seizing control in the name of Hillary Clinton
Clinton supporters are planning on Hilljacking the Democratic Party.
by amana h August 27, 2008