Definition: The word "sentimentalisation" has become a pop-culture meme and can be defined as the act of turning something unpleasant into something pleasant. For example:

Sentence: "She had a heart attack because she was so sentimentalising herself." In this case, someone is expressing that they were very upset or affected by something unpleasant (the heart attack) when it turned out to be harmless fun for her. Sentimentalisation can be unsettling as it suggests that even pleasant things can turn into uncomfortable experiences. This could be seen in situations where someone feels guilty about doing something that seems good on the surface but is actually causing them harm or pain in the long run.