Pokey (noun)

A prison or jail, especially a small or uncomfortable one.

Origin:

Origin uncertain, possibly from the noun form of poke (to prod or prod gently).

Examples:

1. He was sentenced to a year in the pokey.
2. The pokey was overcrowded and unsanitary.
3. He had to spend the night in the pokey.
4. She was afraid of getting stuck in the pokey.
5. The pokey was a terrible place to be locked up.