| a chattering or flighty, light-headed person. |
| a gadget; dingus; thingumbob. |
tamper with
Interfere or meddle, especially in a harmful way. For example, If you tamper with that lock it's sure to break. [c. 1600]
Engage in improper or secret dealings, as in He was accused of tampering with the jury. [c. 1600]