Definition of growlers:
(n) :
(informal, Canada, US, Australia) A kind of jug, often with a handle, used to carry beer and preserve carbonation.
(n) :
A person, creature or thing that growls.
(n) :
A small iceberg or ice floe which is barely visible over the surface of the water.
(n) :
(US, dialect) A fish of the perch family, abundant in North American rivers, so named from the sound it emits.
(n) :
(dialect, UK, Yorkshire) A pork pie.
(n) :
(British, slang) The vulva.