WordNet (r) 3.0 (2006):
swoosh n 1: the noise produced by the sudden rush of a fluid (a gas or liquid) [syn: swoosh, whoosh] v 1: move with or cause to move with a whistling or hissing sound; "The bubbles swoshed around in the glass"; "The curtain swooshed open" [syn: lap, swish, swosh, swoosh]