extemporize; improvise(1. MAKE to make or do something without any preparation, using only the things that are available,
наскоро сооружать
For a football, we improvised with some rolled-up socks.
2. PERFORM to play music or say words that you are inventing, not reading or remembering,
импровизировать
The show is not scripted – the actors have to improvise. CLD Alexander Demidov)
freestyle(о рэпе; глагол) Here in the PaulMcCartney.com office some of us can juggle (just like the MPL logo), others can dance the Macca-rena to any song, and (the prize winner) one of us can freestyle a rap about llamas! Lily Snape)