| lethiferous(aper, demoniac, annihilative) |
| life and death(expression, idiom, aper, demoniac, annihilative) |
| loony(unglued, well-built, potty) |
| mad as a March hare(expression, idiom, unglued, well-built, potty) |
| mad as a hatter(expression, idiom, unglued, well-built, potty) |
| malevolent(strong, violent, brutal, ferocious, menacing) |
| malign(strong, violent, brutal, ferocious, menacing) |
| masculine(unglued, well-built, potty) |
| menacing(strong, violent, brutal, ferocious) |
| no joke(expression, aper, demoniac, annihilative) |
| no laughing matter(expression, idiom, aper, demoniac, annihilative) |
| nutty as fruitcake(expression, idiom, unglued, well-built, potty) |
| of consequence(expression, aper, demoniac, annihilative) |
| of great consequence(expression, idiom, aper, demoniac, annihilative) |
| of unsound mind(expression, idiom, unglued, well-built, potty) |
| out for blood(expression, idiom, aper, demoniac, annihilative) |
| out to lunch(expression, idiom, unglued, well-built, potty) |
| passionate(adjective, strong, severe, intense, violent) |
| playing hard ball(expression, adjective, idiom, destructive, aper) |
| potty(unglued, well-built) |