Three strikes and you are out

three strikes and (one's) out

Three mistakes, transgressions, or infractions will lead someone to failing or being dismissed. He's got two strikes against him for coming into work late; three strikes and he's out. The school takes truancy very seriously: three strikes and you're out.
See also: and, out, strike, three
Farlex Dictionary of Idioms.

Three strikes and you are out.

Fig. Three chances and you are finished. (From baseball.) One more arrest for speeding and you lose your license. You know, three strikes and you're out.
See also: and, out, strike, three
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • three strikes and (one's) out
  • three strikes and you're out
  • if you don't make mistakes, you don't make anything
  • get right with (someone)
  • divine
  • to err is human
  • to err is human (to forgive is divine)
  • to err is human, to forgive divine
  • place the blame on
  • place the blame on (someone or something)