How do you say "Let's have a drink! (술 한잔 합시다)"

Let's have a drink! (For Guys)

술 한잔 합시다.

Sool Hahnjahn hahpsidah

Let's have a drink! (For Girls)

술 한잔 해요.

Sool Hahnjahn haeyo.

Let's have a drink! (informal)

술 먹으러 가자.

Sool muguroh gaazaa 

(let's go out and have a drink)

muguroh = go out

술, Sool = alcohol

합시다 hahpsidah = let's

한잔, Hahnjahn = one glass

Literally, it means Let's have a glass of alcohol!

MORE!

How to order soju in Koran?

Soju, hahnah Jusaeyo!

소주 하나 주세요

Soju is very strong. It has 18~20% alcohol depending on brand. 

My favourite is Chaam e sool on the picture above. 

In Korea, you mix Beer and soju (80%+20%) and make 소맥 (somaek) cocktail.

There is even a cup for Somaek. You can get drunk even faster with somaek but watch out 

your alcohol tolerance.