Meaning of swish

(adj) elegant and fashionable; "classy clothes"; "a classy dame"; "a posh restaurant"; "a swish pastry shop on the Rue du Bac"- Julia Child

(noun) a brushing or rustling sound

(verb) move with or cause to move with a whistling or hissing sound; "The bubbles swoshed around in the glass"; "The curtain swooshed open"