This first word is probably the most difficult to understand because it is a virtue , and has a broad definition. It includes an apprenticeship in self-mastery. Chastity enables us to respect the dignity of the human person and see sexual union a gift of God that is protected because of its sacred character. Everyone is called to chastity, whether single, married, or a consecrated religious.
Chastity and Virginity
The language and literature of chastity | University of Cambridge
Chastity is the Virtue opposite Lust [Lust is to see or believe the other human person as an object, as a tool or means to an end] and is unique and set apart from Continence. Chastity is one of many Virtues, and is best understood in the context of other Virtues. The definition of Virtue is being the very best version of oneself, to attain the pinnacle of your own best capability without comparison or contrast to others. Chastity is different from Continence. Continence is an inclination of the will, while Chastity is an inclination of the soul and is the fruit of prayer; as such Chastity is commonly referred to in the context of the ethical norms and guidelines of a particular religion, civilization or culture.
Virgin vs. Chastity
Some people think that chastity and virginity are synonymous, but they are not. Not all chaste people are virgins, and not all virgins are chaste. For example, before their conversions, Saint Augustine fathered a child out of marriage, Saint Margaret of Cortona lived with her boyfriend, and Saint Pelagia was a prostitute. While they may not have been virgins, they became chaste—and became saints. On the other hand, some people are technically virgins, but they compromise their purity in countless ways.
I have never heard the chewed up gum analogy, but I remember stories about cupcakes passed around and similar visual aids. I always thought there was something ugly about these lessons. It seems to me that the fundamental problem with all of these analogies is that they equate chastity with virginity. Virginity by definition is something that once lost is never regained.