Any animal or person who squeals.
A pig.
An informant.
A kind of jug used to carry beer having 1 litre or 32 ounce capacity (half the size of a growler).
Anything that makes a squealing noise.
(rfv-sense) The European swift.
(rfv-sense) The duck.
(rfv-sense) The golden plover.
(rfv-sense) A young pigeon.