try something for size

try (something) for size

To try, use, or consider something in order to make a decision or form an opinion about it. Likened to putting on a garment to see if it fits. Sometimes used as a rhetorical imperative to behold an extreme example of something. The whole point of test driving a car is to try it for size to see if you feel comfortable in it. Too hungry for a regular burger? Try this for size! It's eight patties!
See also: size, try
Farlex Dictionary of Idioms.

try something for size

try out or test something for suitability.
See also: size, something, try
Farlex Partner Idioms Dictionary
See also:
  • get (one's) rocks off on (something)
  • as though
  • shine through
  • a change of tack
  • the bloom is off the rose
  • the bloom is off
  • the blush is off the rose
  • team Xerox
  • be out for the count
  • a Monday morning quarterback