The correct spelling of the phrase "fixing up on" is "fixing upon". The IPA phonetic transcription of the phrase is /ˈfɪksɪŋ əˈpɒn/. The confusion in spelling between "up" and "upon" comes from the fact that in spoken language, final consonants are often dropped or merged with adjacent sounds. In this case, the final "n" sound in "upon" is often lost in conversation, leading some to mistakenly spell the phrase as "fixing up on". However, the correct written form is always "fixing upon".
Fixing up on refers to the act of improving or renovating something, often with the aim of enhancing its appearance or functionality. It involves making necessary repairs, adjustments, or modifications to ensure that the object or space is in its optimal condition or meets certain desired standards.
Fixing up on commonly applies to tangible objects, such as household items, furniture, or a property. For example, if someone decides to fix up on their old car, it means they are taking steps to repair any damages, upgrade its features or improve its overall performance. Similarly, when talking about fixing up on a house, it typically involves repairing or replacing damaged components, repainting, decorating, or adding new elements to make the property more attractive or functional.
The term can also be used to describe the process of enhancing one's personal appearance or style. For instance, if someone is fixing up on their outfit, it means they are making an effort to improve their appearance by choosing suitable clothing items, accessories, and grooming themselves.
In summary, fixing up on refers to the act of improving or renovating something to make it better, more visually pleasing, or functional. The term can be applied to various contexts, ranging from physical objects like cars, houses, or personal appearance.