Gradually increasing your rate of laughter - Often the case when someone makes a joke that isn't as funny at first, but slowly sinks into your thoughts and becomes the funniest thing you've heard yet.
Heh. Heheheh. Hehehehehehahahahaha! HAHAHA! HAHAHAHAHAHA!!! PFFFFHAHGAUHAUGHEGUEHGSDKGDGLAKJHSDGHSJH- etc. etc. would be considered Graduloling.
The hypothetical man (often a sinistercharacter who decided not to go to boot camp) that is doing your girlfriend/wife while you are on deployment overseas.
Ain't no use in goin home,
Jody's got your girl and gone.
Ain't no use in goin back,
Jody's got your Cadillac,
Ain't no use in feeling blue,
Jody's took your checkbook too.