I haven't hijacked one of twuwm's wwftd recently, and this isn't exactly a highjack. He gives "dosh" as British slang for "money". By accident I found that Issue 98 of "Take Our Word For It" has several paragraphs about this word in the segment called "Words to the Wise".http://www.takeourword.com/Issue098.html

For a good article on slang: http://www.kcl.ac.uk/ip/jasminelassen/Slang%202.html There I found meaning for another bit of British slang that I had been unable to understand:
"one-off" as in "nonce word = one-off coinage"