X-piles n. Mysterious, unidentified throbbing objects from Uranus.
X-ray specs n. Spectacles usually available by mail order only from crappy magazines which enable the wearer to see through a woman's clothing.
XXX A special video certificate awarded to pornographic films of exceptionally poor sound and picture quality.
xylophone 1. v. To move along a fine of naked women who are all bending down, and spank their bottoms - which are of varying sizes - with ones penis; to play a tune on womens buttocks. From the Greek xylo meaning wood (qv) and phonnicus meaning to hit tunefully. 2. n. Like a piano, but you twat it with little sticks.