卷不动

Sits at the heart of the 内卷 (nèijuǎn) 'involution' / 躺平 (tǎngpíng) 'lying flat' discourse that took over Chinese social media around 2020. 卷 here is the verb sense of '内卷' — competing harder for the same shrinking pie. 卷不动 = 'I'm out, I can't keep up the rat race.'

Internet slang, very colloquial. Common in office/student venting. The grammatical shape is 动词 + 不动 'verbally unable to (keep) doing,' a productive pattern (走不动 'can't keep walking,' 吃不动 'can't eat any more').