drink like a fish

to drink to excess

He was unaware of the danger that could come to him if he were to drink like a fish and as a result he almost succumbed to alcohol poisoning.

by The Return of Light Joker April 3, 2009

Drinks like a fish

Someone who drinks a lot

John smokes like a chimney and drinks like a fish.

by mrWAB February 9, 2015

Drinking like a fish out of water

Consuming large quantities of alcohol in order to feel comfortable in a place you don't belong.

"I didn't want to be there. So I started drinking like a fish out of water"

by spinetrolley December 28, 2015