作业比小三还可怕
[zuò yè bĭ xiăo sān hái kĕ pà]
This nickname humorously compares homework ('作业') to an extremely undesirable third party ('小三' meaning a 'mistress' in Chinese). It's a light-hearted exaggeration indicating that doing homework is as troublesome as dealing with a difficult personal situation. The stress over endless assignments surpasses even a challenging emotional affair.