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Blow The Gaff
Blow The Gaff
Blow The Gaff : Phrases
Meaning:
To reveal a secret.
Example:
When we go to meet your father regarding your marriage, you have to keep mum. Do not blow the gaff.
Origin:
Gaff is related to be a variant of the Gab described in Gift of the gab and has nothing to do with the use of the word to describe a spar on a sailing ship, nor does it relate to the pole of the same name, which is based on the Portuguese gafe meaning boat-hook.