| mewling(cry, laughter, tehee) |
| mirth(noun, adjective, sound, fit, roar) |
| mishap(noun, collapse, failure) |
| moo(cry, laughter, tehee) |
| nemesis(noun, collapse, extinction, destruction, wreck) |
| nervous collapse(noun, expression, collapse, failure) |
| nervous exhaustion(noun, expression, collapse, depression, neurosis) |
| neurasthenia(noun, collapse, failure, depression, neurosis) |
| nicker(cry, laughter, tehee) |
| on the skids(noun, expression, idiom) |
| overthrow(noun, collapse, extinction, destruction, wreck) |
| parting(noun, split, division, separation, disintegration) |
| peal |
| percuss(smash, boom, biff) |
| pile-up(noun, crack, smash, blast, clatter) |
| pile up(expression, smash, clatter, boom, biff) |
| pinch bar(expression, cry, laughter, tehee) |
| plash(cry, laughter, tehee) |
| potch(smash, boom, biff) |
| pratfall |