What does "bathtub gin" mean?

Gin or a similar alcoholic beverage which is of very poor quality, as if made by a homebrewer in a bathtub.

What is a synonym for "bathtub gin"?

Common synonyms include: bootleg, hooch, moonshine, shine.

noun, slang

noun, slang ·Uncommon ·College level

Noun

1
Gin or a similar alcoholic beverage which is of very poor quality, as if made by a homebrewer in a bathtub. colloquial, countable, uncountable
"Near-synonyms: rotgut, gut rot, hooch, swill, red-eye, moonshine"
2
homemade gin especially that made illegally wordnet

"Near-synonyms: rotgut, gut rot, hooch, swill, red-eye, moonshine"