shut one's gob
To stop talking; to be quiet.
Why don't you just shut your gob? I'm tired of listening to you.
noun
A lump of soft or sticky material.
1952, The Glass Industry, Volume 33, Ashlee Publishing Company, page 309, These inventors have discovered that gobs may be fed at widely spaced times without allowing the glass to flow during the interval but instead flushes out the chilled glass which accumulates during the dwell.
Saliva or phlegm.
He spat a big ball of gob on to the pavement.
A whoopie pie.
verb
To gather into a lump.
1997 March, William G. Tapply, How to Catch a Trout on a Sandwich, Field & Stream, page 60, 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.
To spit, especially to spit phlegm.
noun
The mouth.
He′s always stuffing his gob with fast food.
Oi, you, shut your gob!