| evil doing(noun, expression, wrong, weakness, burden) |
| exploitation(wrong, abuse, neglect, fault, misuse) |
| fail(verb, offend, disobey, deviate, trespass) |
| fast one(expression, break, wrong, evil, case) |
| felony(noun, break, wrong, evil, case) |
| flagitiousness(wickedness, sin, depravity) |
| flop(break, slip, mess, mistake, breach) |
| foible(noun, wrong, weakness, burden, blame) |
| fool around |
| foul-up(break, slip, mess, mistake, breach) |
| foul up(verb, expression, phrasal verb) |
| fouling |
| frailty(noun, wrong, weakness, burden, blame) |
| friskiness(trouble, wrong, damage, evil, harm) |
| frolicsomeness(trouble, wrong, damage, evil, harm) |
| frowned-upon behavior |
| fuck up(verb, expression, phrasal verb) |
| funny business(expression, trouble, wrong, damage, evil) |
| gaffe(break, slip, mess, mistake, breach) |
| gag(trouble, wrong, damage, evil, harm) |