1. What does it mean?
쪼렙 is casual gaming slang for a character at a low level. It can also describe being new or unskilled in an everyday activity, much like joking that your ability has barely leveled up.
Also written or said as 쪼랩, jjorep
2. The nuance
It can sound belittling when directed at someone else. A low-level character may belong to an experienced player, so level and ability are not identical.
3. Examples
“아직 쪼렙이라 이 지역은 나중에 갈래.”
My character's still low-level, so I'll visit that area later.
“요리는 쪼렙이라 쉬운 메뉴부터 연습 중이야.”
I'm a cooking beginner, so I'm practicing easy dishes first.
Sources
References support the meaning and usage. Example sentences are written for NoCapWiki.