| flap |
| flop |
| flow |
| follow a scent(verb, expression, idiom, draw, follow) |
| go after(verb, expression, follow, lead, guide) |
| grime(verb, foul, stain, smear, soil) |
| halt(verb, draw, follow, extend, trace) |
| hang back(verb, expression, draw, follow, extend) |
| hound(verb, follow, lead, guide, pursue) |
| lag(verb, draw, follow, extend, trace) |
| lag behind(verb, expression, draw, follow, extend) |
| loiter(verb, draw, follow, extend, trace) |
| loll(verb, hang) |
| lop |
| make dusty(verb, expression, foul, stain, smear) |
| make impure(verb, expression, foul, stain, smear) |
| mess up(verb, expression, foul, stain, smear) |
| mold(verb, corrupt, foul, stain, smear) |
| muddy(verb, corrupt, foul, stain, smear) |
| nose out(verb, expression, draw, follow, extend) |