gob UK /ɡɒb/US /ɡɑb/noun 7verb 3forms 3phrases 3 noun7 •A lump of soft or sticky material. •(UK, slang) The mouth.He′s always stuffing his gob with fast food.Oi, you, shut your gob! •[in the plural] A large amount. •(slang) Saliva or phlegm.He spat a big ball of gob on to the pavement. •(US, slang) A sailor.Well I have taken the oath of allegiance for 4 years service anywhere in the world and am now a real 'gob' in the U. S. Navy. — 1918 •(US) A whoopie pie. •Waste material in old mine workings, goaf.This consisted in wheeling gob back to the most distant part of the stope and filling up the sets right up to the roof. — 1930 verb3 •(slang) To spit, especially to spit phlegm. •To gather into a lump.I liked to gob up two or three worms on a snelled hook, pinch three or four split shot onto the leader, and plunk it into the dark water. — 1997 •To pack away waste material in order to support the walls of the mine. formsgobbed · gobbing · gobs Phrases with gob gob offTo gossip; to chat idly. gob upTo gobble; to consume. shut one's gobTo stop talking; to be quiet.