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Related to hang tough: hang off
hang tough (on something)
Sl. to stick to one's position (on something). I decided I'd hang tough on it. I tend to give in too easy. Yes, just hang tough.
to refuse to change your actions or opinions The president is hanging tough on his programs and will not even discuss a compromise with leaders of Congress.
hang tough(American informal)
to not change your actions or opinions although other people try to make you do this The President is hanging tough on the hostage crisis.
Remain firmly resolved, as in We're going to hang tough on this point and not give in. This slangy idiom uses tough in the sense of "aggressively unyielding," a usage dating from the first half of the 1900s.