Definition from Wiktionary, the free dictionary
- (a success): da bomb
- (informal) The atomic bomb; the capability to launch a nuclear attack. Often capitalized.
- Pakistan and India both have the Bomb now.
- (slang) A success; something excellent.
- Their new record is the bomb.
- That party was the bomb!
The two diametrical slang meanings are distinguished by the article. For “a success”, the phrase is generally the bomb. Otherwise bomb can mean “a failure”.