我愿把小三捐去抗日
[wŏ yuàn bă xiăo sān juān qù kàng rì]
This username 'I Want to Send My Mistress Back to Resist the Japanese Invasion', uses satire in a rather dramatic manner. Historically, the 'resistance against Japan' refers to China's fight against Japanese invasion in WWII. The 'mistress' in this context humorously implies giving up on an extramarital affair to contribute to the war effort.