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1.
to poke someone on the Facebook and subsequently block him/her.
I poke-blocked her chickenhead azz that night!
by dmart November 17, 2005
 
2.
Is a derivative of the phrase "cock block". A cock-block is when one is macking biddies and another person(s) busts in and interupts the macking process. A Poke-Block uses the same defination.
Bobby totally poke-blocked me while I was macking it to some fly biddies.
by Hank from Prides October 23, 2006