I've played this improv game before and it's really fun! (It had a different name tho, I couldn't think of something catchy so just I went with that XD)
Someone posts the first word that pops into their head, "food"
The person after them does the same thing, "music"
Then the person after THAT posts the "dictionary definition" of those two words, "foodmusic, noun, in which one uses food to express themselves in a musical sense, eg, throwing pancakes at the wall to produce a slapping sound while stepping in spaghetti to make 'squish'"
First word, keys
have fun! ^-^