Sausage on a plate
Shower-time practice of stretching the scrotum out with both hands until it is perpendicular to the body, causing the genitals to resemble the titular item. Accompanied by a cry of "Sausage on a plate!!"
Most commonly seen in lunchtime rugby practise. Does not go down so well in french lessons.
written by an*nym*us*us*r, approved by Mansh

This can become 'mouse on a trampoline' by bouncing the 'sausage' gently on the 'plate'.

Only a mouse? I'd keep that one quiet if I were you. Oops. Too late. - Matt
written by Bi*l Hi*kock, approved by Matt