再欺负我就把班主任嫁给你
[zài qī fù wŏ jiù bă bān zhŭ rèn jià jĭ nĭ]
'Marry our homeroom teacher if you bully me again' is a whimsical phrase used humorously when asking for a favor or protection, with no real intention of the action being followed through, expressing some kind of frustration with being 'bullied'.