To walk in a confident, often exaggerated manner, typically with a sway or strut. She sashayed down the runway, capturing everyone's attention with her confident stride.
To move or proceed in a casual or ostentatious manner. He sashayed into the room, acting as if he owned the place.
(square dancing) To slide sideways past one's partner in a gliding motion. The dancers sashayed to the left as the fiddles played.
Chiefly Southern US: to make a brief, casual trip or excursion. They sashayed over to the neighbor's porch for a chat.