| Clue | Source | Date |
|---|---|---|
| Computer language instruction to do nothing: Hyph. | ||
| Slangy refusal | LA Times Daily | 14 Feb 2016 |
| Slangy refusal | ||
| Don Knotts denial | Wall Street Journal | 29 Dec 2015 |
| Don Knotts denial | LA Times Daily | 13 Dec 2015 |
| Don Knotts denial | ||
| Don Knotts denial | ||
| Don Knotts denial | ||
| Informal denial | ||
| Colloquial denial | ||
| "Are you nervous?" response, a la Don Knotts | ||
| Informal denial | ||
| "Nyuh-uh" |