Short for "Wake The Fuck Up, Pal". A supremely condescending and passive-aggressive way of telling a "friend" who's a government employee, stoner, unemployed, etc. that you think they are lazy and should get their ass in gear.

Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)