Refers to part of the topic of the song by him sayin more money which releates to the common cliche many rappers use because the more money they have weighs down their pockets and modifies their walk or a gain in confidence producing a more confident gait
as the other explanation puts it so eloquently, yes, he is on a yacht. however, this lyric also implies wealth (not having bills to pay or job responsibilities to be home for) and comes from a song written in a time when mobile phones were a luxury item
he won't stop trying to become more famous and successful until his name is displayed on a blimp. this would be a very high level of success because few events or people are advertised on blimps, and advertising in this way is expensive.