| dim bulb(noun, blockhead, birdbrain, airhead, bonehead) |
| dimwit(noun, blockhead, birdbrain, airhead, bonehead) |
| ding-a-ling(noun, turkey, simpleton, yo-yo, nutcase) |
| ding-dong(noun, turkey, simpleton, yo-yo, nutcase) |
| dingbat(noun, turkey, simpleton, yo-yo, nutcase) |
| dip(noun, blockhead, birdbrain, airhead, bonehead) |
| dipstick(noun, turkey, simpleton, yo-yo, nutcase) |
| dullard(noun, blockhead, birdbrain, airhead, bonehead) |
| dum-dum(noun, blockhead, birdbrain, airhead, bonehead) |
| dumbhead(noun, blockhead, birdbrain, airhead, bonehead) |
| dummkopf(noun, blockhead, birdbrain, airhead, bonehead) |
| dunderhead(noun, blockhead, birdbrain, airhead, bonehead) |
| dupe(noun, turkey, simpleton, yo-yo, nutcase) |
| featherhead(noun, turkey, simpleton, yo-yo, nutcase) |
| fool(noun, blockhead, birdbrain, airhead, bonehead) |
| gawk(noun, blockhead, birdbrain, airhead, bonehead) |
| git(noun, turkey, simpleton, yo-yo, nutcase) |
| golem(noun, blockhead, birdbrain, airhead, bonehead) |
| goof(noun, blockhead, birdbrain, airhead, bonehead) |
| hammerhead(noun, blockhead, birdbrain, airhead, bonehead) |