- (idiomatic) A ridiculously large (or, less commonly, small) sum of money.
- Buying a house in central London will set you back close to a million quid, these days – it's just silly money.
- 1996: Mike Lawrence, A-Z of Sports Cars
- With collectors prepared to pay silly money for limited edition cars, Aston Martin commissioned Zagato to build a new body on the Vantage chassis.
- 1999: Jon Broome, The NEC Engineering and Contruction Contract: A User's Guide
- Representatives of both the Employers and Contractors thought that the potential to make ‘silly money' was not within the ECC.
- 2005: David Belbin, The EBay Book
- 12p is a small price to pay to save on inconvenience and get a shot at someone paying silly money for your item.
- 2005: Benjamin Craig, Cannes - A Festival Virgin's Guide: Attending the Cannes Film Festival for filmmakers and film industry professionals
- Standard prices range from about 180€ - 500€ per night (unless you're looking to spend really silly money).