1. What does it mean?
캐리 comes from carry. In games it praises a player whose performance drives a win or rescues a difficult situation. The same verb, 캐리하다, also appears in group projects or entertainment when one person makes the result work.
Also written or said as 하드캐리, kaeri
2. The nuance
It can refer to a decisive contribution, not literally doing everything alone. Acknowledging one person's 캐리 need not erase the rest of the team's support.
3. Examples
“마지막 수비를 네가 캐리했어.”
You carried us through that final defensive play.
“발표 자료는 민지가 캐리해서 완성됐어.”
Minji's standout work got the presentation materials finished.
Sources
References support the meaning and usage. Example sentences are written for NoCapWiki.