The phrase "paint spills" refers to accidental or unintentional leakage or splatters of paint, usually causing a mess and stains on surfaces. Full definition
Hi, a drop cloth is a large piece of inexpensive and low quality canvas fabric that painters use to catch paint spills. (scatteredthoughtsofacraftymom.com)
A friend of mine had a whole bucket of paint spilled on her white carpet. (theinspiredroom.net)
It seems that so many developers are attempting to ape the style that comes from splashes of paint spilling from a protagonist or vehicle. (nintendolife.com)