To paint (a surface) by means of a spray, using a spray can or spray gun.(verb-transitive)
Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)
Use "spray-paint" in a sentence
"The airbrush came out of my fascination with spray-paint, it seemed so tough...like a fake metallic armor that enveloped a subject."
"But what it all comes down to is this: walls are just so much bigger and cheaper than canvas; it is much, much nicer to use spray-paint outdoors than indoors, and last but not least, working on the street always gets you an immediate response to what you are doing - which can be tough but is probably the reason why we have become artists in the first place."
"The killer describes teen years infatuated with hip-hop, sneaking out at night in baggy jeans and hooded sweat shirts to spray-paint buildings around the capital with graffiti under the tag name "Morg.""