When a person has their ass eaten out by three people in one go.
Person 1: "Tim is looking really smiley today; seems to have a little extra spring in his step."
Person 2: "That's because he participated in a British Picnic at Clarissa's house yesterday. He was the main dish."
Tim: wanders in "Top of the morning, gents!"
by muppetspuppet November 20, 2013
Get the British Picnic mug.