Definition from Wiktionary, the free dictionary
roaster (plural roasters)
- One who roasts food.
- (cooking) A kitchen utensil used for roasting.
- A chicken, pig, etc. suitable for roasting.
- One who roasts or banters, especially as a comedy routine.
- (planetology, informal) A hot Jupiter.
- (Scotland, slang, derogatory) An objectionable person; somebody making a fool of themselves.