1 definition by Bryan13

Giving Oral Sex to Male from Female or Receiving Oral Sex from Female to Male..(Female giving to Male) In other words getting some Dome or Head or Brain.
Man, last night I picked up this chick at the Bar and took her to my car and she gave me Head Jacks.

The other day my ol' lady gave me some Chilly Head Jacks!
by Bryan13 July 11, 2008
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