叫你2B都对不起铅笔
[jiào nĭ 2b dōu duì bù qĭ qiān bĭ]
Calling You Stupid Is an Insult to Pencils: Here, it uses sarcasm to say that calling someone 'stupid' is even unfair to pencils (which are often harmless), showing disdain towards someone else's ignorance or rudeness.