| meathead(noun, person, slang, stupidity) |
| merman(noun, creature, being, myth) |
| mome(noun, person, slang, stupidity) |
| moron(noun, person, slang, stupidity) |
| mug(noun, person, slang, stupidity) |
| mutt(noun, person, slang, stupidity) |
| natural(noun, person, slang, stupidity) |
| nimrod(noun, person, slang, stupidity) |
| nincompoop(noun, person, slang, stupidity) |
| ninny(noun, person, slang, stupidity) |
| ninnyhammer(noun, person, slang, stupidity) |
| nit(noun, person, slang, stupidity) |
| nitwit(noun, person, slang, stupidity) |
| noddy(noun, person, slang, stupidity) |
| noodle(noun, person, slang, stupidity) |
| numbskull(noun, person, slang, stupidity) |
| numskull(noun, person, slang, stupidity) |
| oaf(noun, person, slang, stupidity) |
| pinhead(noun, person, slang, stupidity) |
| prat(noun, person, slang, stupidity) |