From WordNet (r) 3.0 (2006):
swash
n 1: the movement or sound of water; "the swash of waves on the
beach"
v 1: make violent, noisy movements
2: dash a liquid upon or against; "The mother splashed the
baby's face with water" [syn: spatter, splatter, plash,
splash, splosh, swash]
3: show off [syn: boast, tout, swash, shoot a line,
brag, gas, blow, bluster, vaunt, gasconade]
4: act in an arrogant, overly self-assured, or conceited manner
[syn: swagger, bluster, swash]