What a bonehead!

A Malaysian man got his penis stuck in a water bottle — and then slashed his phallus with a saw while trying to pry it loose, according to a report.

The 21-year-old was at home in Teluk Gong, Malaysia, on Friday when his pecker accidentally got lodged in the bottle as he was relieving himself, the Daily Mail reported Monday. He told authorities he chose to use the bottle because he was unable to make it to the bathroom in time.

In an effort to reclaim his manhood, he tried to cut open the bottle with a hacksaw, but wound up slicing his penis, The Mail said.

The man was forced to call firefighters, who finally managed to dislodge his member. He was rushed to the Tengku Ampuan Rahimah Hospital, where he was listed in stable condition.

Authorities declined to release his name.