Victorias Secret is known for creating a wide range of fragrances, many of which are designed to be alluring, feminine, and evoke a sense of confidence. The "Very Sexy" line typically includes fragrances that are crafted to make the wearer feel sensual and confident.
"Oasis" in the name could suggest a fragrance designed to be refreshing and invigorating, like an oasis in the desert. It may aim to provide a burst of energy and a feeling of escape or rejuvenation.