| Blue |
| Racy |
| Bluish |
| Indecent |
| Off-color |
| Suggestive |
| A little blue |
| Somewhat dirty |
| A bit off-color |
| Liable to shock |
| On the blue side |
| Near the knuckle |
| On the racy side |
| Somewhat off-color |
| Close to indelicacy |
| Not for delicate ears |
| Suggestive — naughty |
| Bordering on impropriety |
| Bordering on the improper |