Tom Hiddleston has revealed he once urinated on Tom Hollander.

Tom Hiddleston

Tom Hiddleston

The 36-year-old actor "engagingly obliged" when his 'The Night Manager' co-star, 49, begged him to pee on him to help relieve his pain after he was stung by a jellyfish, but doesn't think it worked.

Recalling the incident, the Golden Globe winner told the 'Graham Norton Show': "Tom got stung by a jellyfish and he shouted across the beach, 'I say old sport could you come and pee on me?' And I engagingly obliged.

"I've since read up on it and I don't think it works. It's an old wives' tale."

The actor, who briefly dated singer Taylor Swift last year, also opened up about his school years at the prestigious Eton College, where he claims his classmates bullied him by suggesting he wet the bed.

He said: "Very soon after I arrived I got the nickname 'Piddle' and the boys made up the rhyme, 'Hiddle Piddle did a widdle in the middle of the night.' My closest friends still call me 'Pid' but it's affectionate now."

Tom attended the school at the same time as Oscar winner Eddie Redmayne, 35, and they co-starred in a play together.

He said: "I was in 'A Passage to India' with Eddie Redmayne, who played the female lead. I, on the other hand, played the front leg of the elephant he rode!"