1
general::
Exceed some limit, as in I wouldn't go too far with those remarks or they'll turn on you, or If Jane goes too far, she'll be sent to her room. [Second half of 1500s]
American Heritage Idioms
2
general::
Phrase(s): go too far
to do more than is acceptable. • I didn’t mind at first, but now you’ve gone too far. • If you go too far, I’ll slap you.
McGrawhill's American Idioms And Phrasal Verbs