Tocade : nf fam. A tocade (or toquade) is a taste very bright, generally fleeting, often bizarre and unreasonable, for one thing or for a person (whim, infatuation, flirtation).
Have a fool for one dessert.
This is his new madness (foucade, mania).
Quote from the American writer Truman Capote, by his birth name Truman Streckfus Persons (1924-1984): "This memory had not come to him at random, he had chosen it thinking that it would awaken in Grady an old emotion in time, maybe it would be the same for his new fad). in his novel The crossing of summer (published posthumously in 2005).