| fluff |
| foozle |
| fumble(fail, damage, blow, spoil, mess) |
| goof up(expression, fail, blow, blunder, fumble) |
| gum up(expression, fail, blow, blunder, fumble) |
| mar(fail, damage, blow, spoil, blunder) |
| mend(fail, damage, blow, spoil, blunder) |
| mess(fail, damage, blow, spoil, blunder) |
| mess up(expression, fail, blow, blunder, fumble) |
| misapply(fail, damage, blow, spoil, blunder) |
| miscalculate(fail, damage, blow, spoil, blunder) |
| miscompute(fail, damage, blow, spoil, blunder) |
| misconjecture(fail, damage, blow, spoil, blunder) |
| misconstrue(fail, damage, blow, spoil, blunder) |
| mishandle(fail, damage, blow, spoil, blunder) |
| misjudge(fail, damage, blow, spoil, blunder) |
| mismanage(fail, damage, blow, spoil, blunder) |
| muddle(fail, damage, blow, spoil, blunder) |
| muff(fail, damage, blow, spoil, blunder) |
| mutilate(fail, damage, blow, spoil, blunder) |