Applies to the world of Facebook, where users have the ability to "poke" someone. This does nothing execpt informing the recepient of the poke has in in fact been poked. Then then poke back. And then the original poker pokes back the poke backer who then pokes back...etc etc. This is known as a poke war.
Poke wars accomplish nothing, except of course when one participant finally gives in, relinquishing their soul and any dignity that is attached to it.

Note: Poke wars can also be a semi-pathetic attempt at actually having human contact or just flirting in general without having to worry about following up in any way.

Someone who is possessed by clout chasing. The original human is now gone and a demonic entity that feeds on clout is all that is left. An empty shell with no control of their actions, forced to blindly react to situations they think will bring them attention.

A grueling battle of wits and stamina. Opponents often develop 'poke-vision', ignoring important events and needs such as eating, sleeping, and writing PhD proposals.

A back and forth battle utilizing Facebook's poking mechanism.

A poke war is facebook sex.

A war between two facebook friends by incessantly poking each other in order to get the last poke.

1) An activity where one person pokes another person and the other person pokes them back, resulting in a continuous 'Pokewar' - the end of which may never occur.

2) Similar to the above, except that the pokewar is hosted by some form of social networking site - eg; Facebook, MSN etc...