diss

"Diss" is slang, short for "disrespect," popularized in the 1980s hip-hop scene. It means to deliberately insult or show contempt for someone, often publicly and aggressively. While it was a famous move in rap battles—where artists would "diss" each other through lyrical takedowns—its usage has expanded far beyond music.

A diss isn't just any criticism; it's usually intended to belittle the person being targeted and assert the speaker's superiority. It often involves boasting about one's own skills or accomplishments while simultaneously putting down another person. You might hear someone say, "He totally dissed her outfit," meaning they made a rude comment about what she was wearing. Or, "Don't even bother responding to his diss track," meaning ignore the song he recorded specifically to insult you.

The context is important: a playful jab between friends isn't necessarily a "diss," but a harsh and public put-down definitely is. While it can be used as a verb ("He dissed me on Twitter"), it's also sometimes used as a noun, referring to the act of disrespect itself ("That was a low blow—a real diss!").

So, if someone is intentionally trying to tear you down with words, they're likely "dissing" you. It's a strong term that implies not just disagreement, but deliberate and often public humiliation.

One extra note: in some university slang (especially in the UK), "diss" can also mean "dissertation" (for example, "I'm writing my diss"). That meaning is completely different, and the context usually makes it clear which one is intended.