Father-in-law Jack's term for son-in-law Gaylord "Greg" Focker in the new "Little Fockers" movie starring Ben Stiller and Robert DeNiro.
Jack's use of the term stems from his realization that Greg, who now has 5-year old twins with his daughter Pam, is next in line to be the Byrnes-Focker family patriarch.
The finest of blowjobs one can acquire. The holiest of physical engagement. Those who have received a GobRocker get immediate access to Heaven OR one free Get Out of Jail card in light of their Godly status.