The mouth.
A sailor.
A whoopee pie.
A lump of soft or sticky material.
Waste material in old mine workings, goaf.
Saliva or phlegm.
To pack away waste material in order to support the walls of the mine.
To spit, especially to spit phlegm.
To gather into a lump.
A jawbreaker; a word that is long and difficult to pronounce.