"Not really, but I'll have punt on that"
"That stuck up bitch over there only sleeps with guys who have at least 10 grand in their pocket and a diamond bed to sleep on"
"Fuck mate, have a punt, if it don't work out, nothing lost."
This is likely in reference to football (American) where a punt after possession is used to keep the opposing team from scoring for as long as possible.
Person B: I was punting! They were trying to force me into a bad deal.
Verb: To spend a period of time - ideally an afternoon - in such a vessel. (Generally used as a gerund.)
What a lovely afternoon, let's go punting!