can be defined as a series of lol
ing in sequence. A lol-a-thon may be an occurance with one participant or many, it really depends on how funny or lolable
an event is :]. Also, a lol-a-thon usually goes for a while, as most "a-thon's" do.
"Oh, it was a lol-a-thon when Jerry stacked it over the railings yesterday LOLOLOLOLOL XD"