An explosion of uncontrollable Laughter among a massive (or not so massive) group of people. MP
I dropped a massive roflbomb on the kids around me. They lawled all over themselves as a result.
Idea or Situation (Joke, person falling, etc) that cause wide spread laughter over a small area of people.
i told the llama joke and dropped a roflbomb on my friends
roflbomb, that guy just fell down the stairs.