Examples from the Web for carbuncle
Genius is to other gifts what the carbuncle is to the precious stones.
"You had better go," said Mrs. Carbuncle,—loudly and very severely.
This story of the carbuncle reminds us of Hawthorne's story on the same subject.John Greenleaf Whittier|W. Sloane Kennedy
She saw nothing of it herself, but Mrs. Carbuncle brought her the tidings.
This, of course, was unpleasant; but Mrs. Carbuncle did not have the honours of the battle all to herself.