Going Dutch!!!!

Saturday night, 11pm, very last delivery.
Arrive within the 25minutes of the lady placing her order, (its not luck you know!!)
Guy answers the door, all very jovial, 'Hey Muyt, aaahs it goin'?' seys he.
'Good matey, all good thanks' seys I.
'Wad I owe ya?',
'25 bucks please mate'
'Now where'd I put me wallet?'
Whilst this litle exchange is going on, I noticed to my right their lounge and there was a little movement by someone moving behind the living room door. Have I caught 'em at it I thought. Then I heard someone was messing with the stereo, and as the guy came back with the money, a rather large, no in fact a very large, heavily tattoed fully clothed female appeared with a $5 dollar note clasped in her hand. No, lets call that, clamped in her fist!
As the guy withdrew a 20 & a 5 from his wallet, she proceeded to push the $5 note into his wallet and wink provocatively at him. I thought I was going to gack on the spot.
He then laughing said, 'Ya don't see that very often do ya mate?'
I thought to myself, what do I say? Does he mean?
'A woman paying for anything'
'A woman offering to go Dutch'
'A big tattoed fatty who has such control over her eyelids'
'A woman with her hand in your wallet, putting money IN'
'Our someone giving you $5, when they are DEFINITELYgonna eat $20 worth'
I took a chance and just said, 'It was never gonna be the 20 was it?'
I could still hear him pissing himself as I went up the drive, and she saying, "what d say, what d say, what d say?'
The Skerritts in Oz.