Definition & Meaning of "sorry, not sorry"in English

What does "sorry, not sorry" mean in internet slang?

The phrase "sorry, not sorry" is used to express a statement that is framed as an apology but immediately withdrawn, signaling that the speaker does not actually regret their actions or opinion. The structure is an ironic contradiction where "sorry" is canceled by "not sorry," creating a sarcastic tone. It is informal slang commonly used to justify blunt, controversial, or unapologetic remarks while acknowledging they may offend others.