Английский словарь американских идиом - on top of the world

or sitting on top of the world also (Southern) sitting on high cotton {adj. phr.}, {informal} Feeling pleased and happy; feeling successful. * /John was on top of the world when he found out that he got into college./ * /When Ruth won first prize in the contest, she felt as though she was sitting on top of the world./ * /The girls were sitting on high cotton because their basketball team had won the trophy./ Compare: FLYING HIGH, WALK ON AIR.