| I dunno |
| [Shrug] |
| No idea! |
| Dunno |
| Who knows? |
| No clue ... |
| Not a clue! |
| That's tough! |
| I'm clueless! |
| Hell if I know |
| Heck if I know |
| I have no idea! |
| 'I have no clue' |
| Unhelpful answer |
| No idea!": 2 wds. |
| Shrugger's remark |
| Darned if I know! |
| I haven't a clue! |
| Shrugging admission |
| Haven't the foggiest |
| ''How should I know?'' |
| Clueless one's comment |
| I haven't the foggiest |
| Dull students response |
| Expression of bafflement |
| Words from the bewildered |
| Comment made with a shrug |