When you are so excited or so angry that you lift your hand off the shift key to early and accidentally put a "1" at the end of your numerous exclamation marks.

Element of punctuation used by morons in place of the period, the full stop, that little dot near the L key. Note: one exclamation point is usually one too many. If you do plan to use more, please take care that you retain muscle control over the finger holding down the right-hand shift key. See also gay speak.

When you're typing really fast on a keyboard and you want to type !!!!! But you don't hold the shift key down long enough and type !!!!1

When you copy and paste "!1!1!1!1!1!1!1!1!1!1" and go too far.

used at the end of an extremely sarastic statement

Something that you out at the end of your sentence to be sarcastic

Used to make a sarcastic statement even more exaggerated.