Sperm-filled is commonly used to describe something that contains or is filled with male reproductive cells. However, there are many synonyms that can be used instead of this phrase. Some common synonyms include semen-filled, ejaculatory, seminal, and spunk-filled. These words can be used to describe a variety of things, including animals, plants, and even humans. While some may find terms like these vulgar or inappropriate, they can be helpful when discussing topics related to reproduction or sexual health. No matter which synonym is chosen to replace sperm-filled, it's important to use language that is appropriate and respectful to all parties involved.