A Scotsman visiting England over indulges himself in the local pub and passes out alongside the road while walking home.
A couple of English lasses happen across him in his unconscious state, and decide to see for themselves what a Scotsman wears under his kilt.
"Let's leave him a little remembrance that we were here." says one.
Her friend reaches up and unties one of the blue ribbons in her hair, and ties it around his manhood, and they go on their way.
The next morning, the Scotsman comes to, and stumbles over to some nearby bushes to relieve himself. Upon pulling up his kilt and seeing the blue ribbon, he says:
"Well, I don't know where you've been me lad, but I see you won first prize!"