| 100% | WITS | 4 | "I'm at my ___ end!" ("I don't know what to do!") |
| 65% | ELSE | 4 | "I don't know what ___ to do" |
| 62% | LOOSE | 5 | At ___ ends (not knowing what to do next) |
| 61% | BEND | 4 | "I don't know what lies around the ___, but I'm going to believe that the best does," quote from the children's book "Anne of Green Gables" |
| 57% | ELSE | 4 | "I don't know what ___ I can do" |
| 55% | ENDS | 4 | At loose ___ (not knowing what to do) |
| 54% | HUM | 3 | What to do when you don't know the words |
| 54% | ELSE | 4 | "I don't know what ___ to say" |
| 54% | ELSE | 4 | "I don't know what ___ to try" |
| 54% | IVE | 3 | "You don't know what ___ been through" ("Be nice to me") |
| 54% | NOLUCK | 6 | [shrug] "I don't know what to tell ya" |
| 54% | ELSE | 4 | "I don't know what ___ to tell you" |
| 54% | BRAG | 4 | What one might do after saying “I don’t mean to toot my own horn, but . . .” |
| 54% | TELL | 4 | "Don't ___ me what to do!" |
| 54% | ONTO | 4 | "I'm ___ you! You don't fool me!" ("I know what you're up to") |
| 53% | HUM | 3 | What to do when you don't know the words to a song |
| 53% | TRY | 3 | What to do again (and again), if at first you don’t succeed |
| 51% | ONTO | 4 | "You don't fool me! I'm ___ you now!" ("I know what you're up to!"): 2 wds. |
| 51% | WHAT | 4 | "I don't know ___ to do!" |
| 51% | MITCH | 5 | Comedian Hedberg who said "I'm against picketing but I don't know how to show it" |
| 50% | ONELINER | 8 | Mitch Hedberg's "I'm against picketing, but I don't know how to show it," e.g. |
| 49% | WITS | 4 | *"I'm at my ___ end!", phrase one might use to express frustration |
| 49% | WATERSKI | 8 | What to do when you're at the end of your rope? |
| 48% | PAM | 3 | "Don't Tell Me What to Do" country singer Tillis |
| 46% | BASE | 4 | Place for Who, What, or I Don't Know |
| 45% | ROMAN | 5 | Like the Super Bowl numerals (although I don't know what happened with 50) |
| 45% | OHTHAT | 6 | "Ah, I didn't know what you were referring to" |
| 45% | ITSAFREECOUNTRY | 15 | "You can't tell me what to do!" |
| 45% | SOSUEME | 7 | "You don't like what I did? I don't care" |
| 45% | ASK | 3 | What to do if you don't see what you want |