An acronym for in other news, used to abruptly segue into a different topic in the same post. In more humorous uses, it can 'ironically' segue into something actually strongly related to the first topic. Compare BTW.
... So yeah, my g/f is bound to dump me any day now. ION, Guitar Hero 3 is the awesomest thing in the history of stuff.
A excellent paintball gun. At the price of 285 it comes with ramping and break beam eyes. Competes with gun 2x or 3x it's price. Made by Smart Parts inc.
A term referring to a woman whose appearance can range from really good looking to downright ugly. As a result, males cannot categorize such a female on a scale of 1-10 as her ranking is incredibly volatile. Thus, their attractiveness is simplified to a different scale for this rare category of women which is marked by a +1 for looking good at the time or -1 for looking bad on an occasion, hence the term ion.
Damn that girl is such an ion, yesterday I would've banged her for sure but today she looks like snooki's asshole.