Akademik

gaff
1.
n. & v.
—n.
1 a a stick with an iron hook for landing large fish. b a barbed fishing-spear.
2 a spar to which the head of a fore-and-aft sail is bent.
—v.tr. seize (a fish) with a gaff.
Etymology: ME f. Prov. gaf hook
2.
n. Brit. sl.
Phrases and idioms:
blow the gaff let out a plot or secret.
Etymology: 19th c., = nonsense: orig. unkn.

Useful english dictionary. 2012.