growler

noun

1. a person, animal, or thing that growls
2. ☆ Slang
   1. a pail or can formerly used to carry out beer bought at a saloon, etc.
   2. a keg of beer, equal to 1/8 barrel
3. a small iceberg
4. ☆ an electromagnetic device used to find short circuits in coils and for magnetizing and demagnetizing