Someone who's considered soft or a 'softie'. A davit is often inter changeable with the word softie. A davit would have a distinct lack of toughness about them.
''Is that a davit over there?'' 'obviously ya muppet, look how soft that fella is'
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.