Ya, I can bench press 500 pounds (TIC).
|LJK||LOL just kidding|
|HHOK||Ha-ha only kidding|
|BST||But seriously though|
|IMNSVHO||In my not so very humble opinion|
|RUS||Are you serious?|
|LBVS||Laughing but very serious|
TIC stands for "tongue-in-cheek." It is often appended to comments that are meant to be humorous or sarcastic.
The phrase "tongue-in-cheek" itself was originally used to express contempt, before acquiring its current, much-more-fun meaning in 1842. In this context, the phrase is meant to evoke the image of someone biting their tongue in order to stifle laughter.