1 [with object] load beforehand:the camera comes preloaded with a 24-exposure filmthe package is preloaded on many home PCs
give (a mechanical component) an internal load independent of any working load, typically in order to reduce distortion or noise in operation.
2 [no object] (often as noun preloading) British informal drink large quantities of alcohol before going out socially:preloading with cheap alcohol is at the root of a lot of crime