any old

any old

Any kind (of a thing) in general. You don't need to buy the expensive stuff, any old laundry detergent works just fine.
See also: any, old
Farlex Dictionary of Idioms.

any old

No particular, whichever or whatever, as in Any old brand of detergent suits me. [Colloquial; mid-1800s]
See also: any, old
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • geezer
  • old cobber
  • an old one
  • an old dear
  • old dear
  • an old bag
  • old bag
  • old bat
  • an old bat
  • make old bones