Question 1

What does “bomb” mean?

Accepted Answer

Describes something outstanding, impressive, or the best of its kind — a beat, a plate of food, a party, a person's looks, or anything else the speaker wants to praise without reservation. It's a superlative on the level of "fire" or "the shit," said with a flat article ("the bomb," not "a bomb") to signal top-tier approval rather than the unrelated sense of "bomb" meaning a failure.

Question 2

Where does “bomb” come from?

Accepted Answer

The praise sense traces to Black jazz and bebop musicians' slang of the 1940s–50s, who used "the bomb" for a solo or set so good it hit like an explosion. It went quiet for decades before African American Vernacular English speakers of the 1980s revived and spread it through hip-hop culture, cementing it as everyday Black youth slang by the early 1990s. Mainstream outlets of the late '90s and 2000s frequently mislabel it generic '90s teen slang or, more recently, 'internet/Gen Z slang,' erasing the Black jazz and hip-hop lineage that actually carried it into the culture at large.