spot-welding n creating an overlapping joint by welding at small points v make circular welds Usage(s) She attacks her job like an assembly-line spot-welding robot, hitting each and every talking point precisely, even when she's rusty with allergies. On The Car Man, his steamy spot-welding of Carmen and The Postman Always Rings Twice. I got tired of spot-welding jobs. Synonym(s) spot welding spotweld spot-weld