in northern ireland poke is another word for ice cream on a cone. so if offered a poke u are not being offered sex!
if you hear the term "pokie" this refers to the seller of the ice cream. usually in a van or other mobile stall.
Literally, to poke someone. Typically this is done over an IM client.
Part of the old school emote family (yeah, before lolcats).
Like anything enclosed in asterisks, *poke* is performing the action of poking the person you send it to.
Largely replaced, in modern context, with "/e", "/me" or "/em" (emote) preceding the action.
Dude: Hey!
Bro: Hey Dude, what's up?
<Long period of silence>
Bro: *Poke* Oi! Wake up!
Dude: ouch! Sorry was doing other stuff!