Wonky (adjective)

1. Not straight; crooked.
2. Not firm or stable; shaky.
3. Not working properly; malfunctioning.

Origin:

Wonky is of uncertain origin, but it is believed to have originated from a dialectal form of wince, meaning to turn or squint, or from wank, meaning to totter or wobble.

Examples:

1. The table was wonky and one of the legs was shorter than the others.
2. The old bridge looked wonky and rickety, as if it could collapse at any moment.
3. My computer is running a bit wonky, I think I need to restart it.
4. The picture on the wall was wonky, it was hanging at an angle.
5. He walked with a wonky gait, as if he had a limp.