Like docking, it involves two, usually homosexual, men where the head of one penis is tucked/hidden in the foreskin of the other. However, the "active" version involves one step further. This is when the "docked" individual uses the foreskin of the other to "masturbate out" both involved parties.

v. collectively or individually finding someone/something to blame for a problem, as opposed to brainstorming which connotes finding solutions to a problem

n. the act of finding someone/something to blame for a problem

(from a TV ad for HD television)