I.up [美 əp, 英 ʌp]副up often appears as the second element of certain verb structures in English (back up, pick up, sit up, etc). For translations, see the relevant verb entry (back, pick, sit, etc).
The rhythm and themes of cumbia then spread to the whole of society, as its romantic and humorous manifestations were adopted to lighten up parties and other social events.
The character's return marked the show's effort to lighten up the tone of recent plots and go back to the family-based storylines of the show's original layout.