Phrasal verbs consists of a basic verb + another word or words. The two or three words that make up a phrasal verb form a short 'phrase' - which is why we call them 'phrasal verbs'.
Phrasal Verb:
roll something up (into something)
Meaning / Example:
1. to include something into something that is being rotated into a coil. > I guess I accidentally rolled the letter up into the poster that was lying on my desk.
2. to make something into a round shape by rolling it. > He rolled the gum up into a ball and tossed it away.