The two day period of time allotted between receiving a poke on Facebook, and returning said poke. Instilled in order to prevent sitting on Facebook for days.
Bill: "HAHA you haven't poked me back all day! I win!"
Andrew: "Dude, haven't you ever heard of the poke war grace period? I still have another day!"
Andrew: "Dude, haven't you ever heard of the poke war grace period? I still have another day!"
by PokeMaster101 January 3, 2012