To insult or openly disrespect someone, often publicly.

• Slang; common in hip-hop, internet, and casual speech.

侮辱或公开表示不尊重某人，常在公众场合。

• 俚语；多见于说唱、网络与日常口语。

An insult or act of disrespect.

• Slang; especially in rap battles and online talk.

侮辱；不尊重的言行。

• 俚语；多见于说唱对决和网络交流。

A dissertation; a long academic thesis.

• Informal abbreviation; chiefly campus slang.

博士论文；较长的学术论文。

• 口语化缩写；多用于高校语境。