The act of sticking your hand up a girl while she's on her period and pulling out the biggest chunk of clot you can find (occasionally rolling up multiple clots into a sphere) and either throwing or eating them, most commonly the latter.
When the chick is using both her hands in a spherical, globe-like shape, during a blowjob. Going the extra mile, involving the boner and scrotum throughout the process.
Grant was too drunk to finish last night until Holly started globing him, which led to a quick climax.