To be charmed and tricked into buying goods you really don't want off a dodgey yet charming charactor, then to find out that the items you bought are cheaper to buy in shops.
Jack - I'm just going to see Wayne, i owe him some money. I won't be a minute dude.
Ken - OK mate, i'll wait here for you.
(10 minutes later)
Ken - What the fuck is all that shit?
Jack - It's an i-pod shuffle, a jumper, some sandals, a watch & a DVD player.
Ken - Sweet mate does he have more i-pods?
Jack - Fuck yeah, he has thousands in his spare room.
Ken - I'm gettin one.
(2 days later)
Ken - Dude them i-pods we bought are £5 cheaper in Argos you know?
Jack - Fuck! We have been well and truely Metcalfed !