끼워

put in, insert, fit into, include, let in

→ 끼우다
verb · informal Rare #23,804
put in, insert, fit into This is the connective form of 끼우다; it commonly appears before another verb or auxiliary.
KO: 카드를 기계에 끼워 주세요.
EN: Please insert the card into the machine.
include, let in Often used with 주다 to mean allowing or helping someone join a group.
KO: 저도 모임에 끼워 주세요.
EN: Please include me in the gathering too.

자네 정신이 끼워 맞춘 거 야

Your mind just made the pieces fit.

— 폭풍의 시간 (2018)

여자는 기술에 안 끼워 줘!

Women are not allowed to get involved in technology!

— 허공에의 질주 (1988)

이 사이에 끼워

Fit it in between these.

— 아마코드 (1973)