n: an online chatterer who is interested, intense and intriguing that, without explanation, abruptly ceases contact after a period of 14 days.
"i thought this guy was the real deal, but he was just a two-week troll."
v. To express mirth by a series of spontaneous, usually unarticulated sounds accompanied by the release or near release of one's bowels
n.
1.The act of such an expression
2.The combination of "shit" and "giggle"
When I hear homophobes rant and wail, it always makes me shiggle.