Your tiles are loose, and the lady knows what is good for a dingbat like you.
dingbat 1838, Amer.Eng., "some kind of alcoholic drink," of unknown origin. One of that class of words (e.g. dingus, doohickey, gadget, gizmo, thingumabob) which are conjured up to supply names for items whose proper names are unknown or not recollected. Used at various periods for "money," "a professional tramp," "a muffin," "a typographical ornament," "male genitalia," "a Chinese," "an Italian," "a woman who is neither your sister nor your mother," and "a foolish person in authority." Popularized in sense of "foolish person" by TV show "All in the Family" (1971), though this usage dates from