gaff(redirected from gaffed)
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blow the gaff(British old-fashioned, informal)
to cause trouble for someone by letting other people know something that they were trying to keep secret (often + on ) They killed Green because he was about to blow the gaff on their drug dealing.
stand the gaff
Take severe criticism or other adversity in stride, as in If you can't stand the gaff, don't try running for office. [Slang; late 1800s]