A worker at a frozen foods plant in Britain apparently gave the ultimate “piss-off” to his employer.

A video that appears to show a stream of urine washing over peas on a production line with the caption “Boycot birdseye peas” [sic] sparked an investigation at the plant in Hull, England.

The 8-second video, reportedly filmed by a disgruntled employee on his last day at frozen foods giant Birds Eye’s state-of-the-art plant there, was first posted by The Sun newspaper.

He reportedly told his co-workers the stunt was a “f–k you goodbye” on his last shift. “This guy wanted to leave in a blaze of glory. But it’s disgusting if he has peed on them,” one source told The Sun.

If the probe reveals the worker really did douse the vegetables with his urine — the stream on the video could be from a hose used to wash the peas — Birds Eye may have to toss a whole week’s production. That’s about 10,000 tons of peas, or 10 million individual packages.

Birds Eye said all of the stock at the plant’s warehouse has been isolated while it probes the pee-tape.