out of left field

out of left field

Uncommon, unpopular, or otherwise strange. Well, that suggestion is certainly out of left field! How did you come up with that one? Sure, my aunt is really wacky and often out of left field, but I love her to pieces!
See also: field, left, of, out
Farlex Dictionary of Idioms.

out of left field

suddenly; from an unexpected source or direction. (See also out in left field.) Most of your ideas are out of left field. All of his paintings are right out of left field.
See also: field, left, of, out
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

out of left field

mod. suddenly; from an unexpected source or direction. All of his paintings are right out of left field.
See also: field, left, of, out
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • out in left field
  • be (out) in left field
  • be in left field
  • left field
  • left-field
  • come to a climax
  • bring (something) to a climax
  • climax
  • split (one's) ticket
  • split ticket