Meaning of hot stuff

hot' stuff'

Pronunciation: [key]
— Slang. Slang.
  1. a person or thing of exceptional interest or merit.
  2. something unconventional, sensational, or daring: This movie is hot stuff.
  3. a person who is erotically stimulating or is easily aroused sexually.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.