not trust someone as far as one can throw him/her

not trust someone as far as one can throw him/her

He (or she) is extremely unreliable and untrustworthy. According to Eric Partridge, this seemingly modern phrase dates from about 1870, and it remains current.
See also: can, far, not, one, someone, throw, trust
The Dictionary of Clichés by Christine Ammer
See also:
  • threat or a promise, is that a
  • cat got your tongue, has the
  • hard to believe
  • pardon/excuse my French
  • (as) sure as eggs (is eggs)
  • a penny for them
  • color of your money, let's see the
  • 57
  • and how