Being both Intelligent, and being able to tap all one's intelligence at the right time.
Also, something that is brilliant, and temporarily eludes description due to it's awesomeness.
Synonyms for genius
On this page, you will find 30 slang terms related to A genius. Some of the top words include: Shaharyar, Up Syndrome, j-mo, cool-cool-awesome, treacherous, and 25 more.