... but the North Americans call it No Pants day
http://www.nopantsday.com/

Sorry if its a bit old... still good
http://members.cox.net/clyqz/macs.html

http://www.thesun.co.uk/article/0,,2-2004061677,00.html

A TEENAGER nicked his father’s credit card — and blew £12,000 in a FOUR-DAY splurge.

Tom Smith, 17, swiped it from a wallet while dad John was out jogging.

...

Next day, he swaggered into VERSACE and spent £800 on trainers and silk trousers.

At GUCCI, staff demanded to see his passport. So Tom left — and blew £1,800 at nearby DOLCE & GABBANA on trainers, jeans, a T-shirt and underwear.

He paid £800 at PRADA for boots and trousers.

Tom returned to VERSACE and spent £1,100 on jewellery, belts, shoes and a T-shirt.

Later he checked into the five-star, £340-a-night Hassler Roma hotel. He bragged: “My guidebook called it a favourite with A-list Hollywood stars.”

Then Tom blew £1,632 on a Louis VUITTON suitcase.

He said: “I needed something to put my clothes in.”

John, a £100,000-a-year investment banker, branded his son “a little s**t.”