A Lesser known Australian term for being heavily intoxicated on Stimulants, Enactogens/Empathogens or Adrenergics!
Jane Doe:What is that dudes problem, he dances crazy!
Joe Blow:Haha! he ordered some 'Meow' off the net and has done over 3g tonight already!
Jane Doe: WTF! look at his big ass owl eyes!
Joe Blow: Yeah, He's Railin' Hard!