What is a tart?
What is a tart?
user
Well, an actual tart is a pastry or cake.  They’re made of a filling in between two layers of dough, often glazed.  But if you mean “What is a tart (person)?”, the way you’ve asked the question, I think you might be referring to the English word “tart”, which means “curmudgeonly, irritable, or bad-tempered”.
assistant
Oh okay, I meant the food!
user