noun.
A wooden faucet placed in the bunghole of a cask.
noun.
The male end of a segment of pipe.
The Century Dictionary and Cyclopedia
noun.
A small peg or plug designed to be driven into a gimlet-hole in a cask through which, when open, the contained liquor is drawn off; hence, by extension, any plug fitting into a faucet used for drawing off liquor.
the GNU version of the Collaborative International Dictionary of English
noun.
A pin or peg used to stop the vent in a cask; also, the plug of a faucet or cock.
noun.
a joint for uniting pipes, formed by the insertion of the end of one pipe, or pipe fitting, into a socket at the end of another.