Tennis Buttock

• fundament (literally "foundation", not common in this general sense in English, but for the butt since 1297)
• Gand or Gaand - a Hindi derivate
• hams, like buttocks generally as a plural, after the meat cut from the analogous part of a hog ; pressed ham refers to mooning against a window; brawn, a singular derived from the Frankish for ham or roast, is also used for both a muscular body part (but either on arms or legs) or boar meat, especially roast
• hurdies - British, origin unknown, also applied to the whole rump