Penolopy jolly This means bottom, backside, arse, bum, derrière etc. and is derived from the Welsh pen ðl (same meaning) and the fact that my mother had had a friend at school called Penelope Jolly. The jolly was optional and sometimes Mum used simply the Welsh term on its own. Thus; "Oh, did you hurt your penolopy?" We had a number of these Welsh-derived words at home. This one was in frequent use but is untransferable, you could say. (INJ) In our family it was just the last three letters, which my mother would half-heartedly claim meant "Full to the brim". Such a lady!