Intransitive verb: to eject a liquid from the mouth (and/or nose) with considerable force as a result of uncontrollable laughter.
A good splorf is the result of a solid punchline, comment or funny action delivered with impeccable timing.
1) She took a sip of her drink just as he farted. With the bottle to her lips and a mouth full of beer she couldn't help but splorf everywhere when she staretd laughing.
2) She was laughing so hard she splorfed her drink all over the counter.