A person, a guy, especially seen as naïve or simple.
Jasperware pottery.
An opaque, impure variety of quartz, of red, yellow, and other dull colors, breaking conchoidally with a smooth surface.
A wasp.
To decorate with, or as if with, jasper.
A woman of loose morals.
Heroin.
To destroy the data on a disk, either by corrupting the file system or by causing media damage.