1) Phrase whose meaning could be paraphrased as: "stop being a fucking pussy and act like you have a fucking pair of balls" (or something to that effect). Often used in sports.
Chopper: "This is John. He spends an hour a day doing his hair. You're also a DJ aren't you mate?"
John: "Yeah."
Chopper: "Well, John, why don't you fucking harden up?"
12 step recovery jargon referring to someone new who talks about how great life is, now that they're sober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.