when you love someone to such a degree that heart just twinges each time you think about them. You love them with every thing you have and you always will. you are overwhelmed by how much they love you and care for you so much. to have a heart twinge is the most precious experience ever.

Adj. Something that is expected to have a long lifespan by virtue of having existed for a long time, based on the lindy effect, named for the New York restaurant Lindy's, coined by Albert Goldman and popularized by Nassim Taleb.