Context:
Jackson and I were having a wonderful time at the LA County fair a couple of weeks ago. It's such a fun place to experience many different things about American culture. One of the most famous parts of the fair is the food. They have deep-fried everything! Deep-fried Oreo cookies, deep-fried butter, deep-fried nachos, it's incredible! I didn't want to miss my chance at this unique experience, so Jackson and I tried many different things. I even ate a fresh and colorful salad to try and balance out my meal. Near the end of the night, we were riding roller coasters, and lots of spinning rides. All the fried foods were making my stomach ill. I was very nervous walking back to the car at the end of the night because my stomach was so sick. Right before we reached our car, I sprayed some poor stranger's car with my technicolor yawn. It was quite disgusting and Jackson was really shocked. I was so embarrassed, but I felt so much better after that.
Explanation: Technicolor yawn = vomit noun
In the example, the speaker had eaten too much foods that upset his stomach. He says he sprayed his technicolor yawn on someone's car. Which means he sprayed vomit on someone's car.
Technicolor yawn should be used as a noun and most often accompanied by a possessive adjective: my technicolor yawn; her technicolor yawn; his technicolor yawn; someone's technicolor yawn
Choose a verb to show an action:
ex: He threw his technicolor yawn all over the street;
She left her technicolor yawn in the toilet and forgot to flush;
The dog ate Mark's technicolor yawn before we could clean it up.
http://idiomstudy.blogspot.com/