Slang word used as a substitute for the "Waikato" region in New Zealand. Originally used on the sports show; "Sports Cafe", but now the local draught beer and certain individual have aquired the name also.
I went cruising down to the old wakachang last night bro and picked up some chicks.
The hangover you get from the music festival Wakarusa after days of drinking and drugs. You come home with brainmush for days. Head feeling like a frisbee.
Hey(insert festival survivor name here), You've been home from Wakarusa for 3 days...can we pleasego have a drink?? No, I'm still suffering from a WakaHangover.