To walk or proceed, especially in an easy or casual manner.
To strut or flounce in a showy manner: sashaying around the dinner party in his fancy new clothes.
To perform the chassé in dancing.
To move in a sideways manner.
A chassé.
An excursion; an outing.
A figure in square dancing in which partners circle each other by taking sideways steps.
[sa-shey] 
(sā-shā')