"Jo had an enormous twatcave"
"your twatcave is almost as big as your mum's vaginal trench"
"i heard she once fit a whole shopping trolley dog up her twatcave"
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.