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| a gadget; dingus; thingumbob. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| blind alley | |
| —n | |
| 1. | an alley open at one end only; cul-de-sac |
| 2. | informal a situation in which no further progress can be made |
blind alley
A dead end; a position without hope of progress or success. For example, That line of questioning led the attorney up yet another blind alley. This term alludes to a street or alley that has no outlet at one end. [Mid-1800s]