verb.
To Hardoga means to enjoy urself. It originates from the japanese celebrity Hard Gay, who seems to enjoy himself whilst performing public stunts. He pronounces his name as "HARD-O-GAY", and since this takes up 8 characters, it cannot fit into an msn emoticon, so the word hardoga is used instead.
natsirt: i'm bored sitruc!
sitruc: alright then, lets hardoga in freezer
natsirt: lets!