1
general::
Phrase(s): stand pat (on something)
to stick firmly to one’s position or opinions. • I am going to stand pat on this issue. • I thought you would stand pat in the absence of new information.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Refuse to change one's position or opinion, as in We're going to stand pat on this amendment to the bylaws. This expression may be derived from the verb pat in the sense of "strike firmly and accurately." [Late 1800s]
American Heritage Idioms