1) A planned or unplanned strike to the testicals and the aftermath that follows. 2) The formal declaration that "I will be hitting you in the testicals immediately" 3) an exclamation by the a crowd observing a testical strike.
1) Did you see that! He just got jengaed!
2) I'm gonna Jenga you for that!
3) ::while witnessing testical strike:: the onlookers exclaim JENGA!