LOI Srands for laughing out inside .. people usually write Lol while chating but have not even smiled in real!! Hence loi took birth. You known something is so funny you laughed out inside so hard u need to express it on the chat, or there are people arround who you wish not to disturb ... you write I loied... u made me loi
1) I am loi-ing , trust me .. not the lol
2) I know you can't see me laughing .. that's because I just loi-edhard ...
Lack of Interest - i.e if something isn't funny or interesting. could be lol for lack of laughter.
Derived from lol but due to overuse loi is to show when something clearly isn't funny.
Person 1 - lol check out this link "blah blah blah dot com"
Person 2 - Loi. /Or Lol (lack of laughter)
Person 1 - Haha did you see such and such tonight, PMSL!!!!
Person 2 - No n00b LOI!