When to use shot glass in Korean
Korean: 술잔[ sul-jan ]

When to use it
A shot glass (술잔) is a very small glass used for strong drinks like soju. People use this word when talking about drinking at home, in a restaurant, or buying small drink cups. It usually means a small glass for alcohol, not a regular water cup.
Example sentences
집에서 작은 술잔을 씻었어요.
I washed the small shot glass at home.
식당에서 술잔 두 개를 달라고 했어요.
I asked for two shot glasses at the restaurant.
친구가 술잔에 소주를 조금 따랐어요.
My friend poured a little soju into the shot glass.
여행 기념으로 나무 술잔을 샀어요.
I bought a wooden shot glass as a travel souvenir.
캠핑장에서 술잔이 테이블에서 떨어졌어요.
The shot glass fell from the table at the campsite.
미술 시간에 술잔 그림을 그렸어요.
I drew a picture of a shot glass in art class.