The phrase "does technicolor yawn" is a colorful euphemism for vomiting. However, there are many other synonyms that can be used to describe the act of throwing up. Some more commonly used alternatives include puke, hurl, regurgitate, spew, retch, and upchuck. Other more humorous options include blow chunks, lose one's lunch, and worship the porcelain god. While it's not exactly a pleasant topic, it can be helpful to have various synonyms on hand to avoid using the same word repetitively and to add some variety to descriptions of unpleasant events.