loliguising
the act of LOL-ing but quietly to yourself. this is typically done in an office setting where you have either seen something funny on the internet, or a friend tells you something in which an LOL is the only way to react. since offices are usually quiet and internet browsing is looked down upon, it's not always wise for one to truly LOL
i spent my afternoon loliguising at the star wars fat kid so my boss couldn't catch me slacking.