Nothing. But you can eat them. A 'Mint Humbug' is the notorious old English buttery, crunchy mint with a chewy center.
Fort Humbug is in Shreveport Louisiana and is at the intersection of Stoner and Youree Dr.
There is no such animal as a humbug. Humbug is an archaic term meaning "hoax", or "jest". While the term was first attested in 1751 in student slang, its etymology is unknown. It is known, however,...
They are traditionally peppermint
A humbug is a boiled peppermint candy