1 spatter, bespatter, splatter, shower, spray, sprinkle, besprinkle, Brit splodge or US also splotch; mottle, spot:
The painters splashed paint all over the floor. My freshly washed car was soon splashed with mud again.
2 blazon, spread, plaster:
Was that your picture splashed across the front page of yesterday's paper?
3 spatter, spray, splatter, sprinkle, spot, stain, smear, smudge, Brit splodge or US also splotch:
There's a splash of tomato sauce on the tablecloth.
4 impression, show, uproar, ado, brouhaha, sensation, commotion, excitement, US foofaraw, Colloq to-do:
After all the advance publicity, he was sure to make a big splash in the theatre.