The reaction video for Clavish 's "Rocket Science" (featuring D-Block Europe) by Ikoomsan is a popular commentary piece within the UK rap community. In the context of this and other UK rap reactions, the phrase (often referred to as "useful") is a slang term used by Ikoomsan to describe lyrics or bars that are exceptionally clever, relatable, or packed with "gems" of wisdom and street knowledge. Understanding "Useful Paper"
: It implies that the lyrics are worth writing down or "taking notes" on because they provide insight into a certain lifestyle or mindset. The reaction video for Clavish 's "Rocket Science"
: The song explores a lifestyle of success, street loyalty ("Free all my niggas, it's not rocket science"), and the complexities of fame and relationships. street loyalty ("Free all my niggas