| dumb move(noun, expression, fault, mistake, rudeness) |
| dumb thing to do(expression, idiom, fault, mistake, lapse) |
| effrontery(noun, rudeness, assurance, nerve, thoughtlessness) |
| egg on face(noun, expression, idiom, difficulty, confusion) |
| enormity |
| escapade |
| evil doing(noun, expression, wrong, weakness, burden) |
| evulgation |
| excitability(noun, mistake, rudeness, thoughtlessness, carelessness) |
| fatuity(nonsense, absurdity, stupidity, foolishness, madness) |
| felony |
| fix(noun, difficulty, confusion, shame, mess) |
| flippancy |
| flop(break, slip, mess, mistake, breach) |
| flub(noun, break, slip, failure, fault) |
| flub-up(fault, mistake, lapse, gaffe, blooper) |
| fluff(fault, mistake, lapse, error, blunder) |
| foible(noun, wrong, slip, weakness, burden) |
| fool mistake(noun, expression, mistake, rudeness, thoughtlessness) |
| fool trick(expression, nonsense, absurdity, stupidity, irrationality) |