Ok, not one word, maybe 2, or even a short sentence... What do you think I'd say if I saw you, bearing in mind I'm a stunning big breasted sex kitten.
I reckon you'd say "Looking for business sir? £20 for a gob job" To which I'd have to make out all I had on me was loose change (at the same time patting my pockets in the universal 'pretending to be skint' routine) so as to refuse your services without causing offense by assuming you wouldn't stoop to providing a personal service for anything less than the tendered amount. Ya hoor that ye are.