Can be used when somebody in front of you is driving or walking incredibly slowly and is usually blocking your way.
User is usually fustrated and inpatient.
More commonly used by British males.
"Come on split arse!"
"Fuck sake this bloody split arse is in my way!"
"Get out the way split arse!"
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. 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.