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Acronym for "Laughing On The Inside A Little".

Used when texting with someone and they say something that just makes you chuckle inside - but just a little bit.

Use when LOL or ROTFLOL or even LOTI are too extreme for the level of amusement you are experiencing.

Can also be used to show a bit of sarcasm when you know the person wants you to laugh at what they said.
Someone texts you something that is mildly amusing, you reply LOTIAL
by TextMaster November 28, 2013