Humble old me had to flex for the folks
Down in Muscle Beach pumping iron and bone

from Odd Future (Ft. Domo Genesis, Earl Sweatshirt, Frank Ocean, Hodgy Beats, Jasper Dolphin, Left Brain, Mike G, Taco & Tyler The Creator) – Oldie Lyrics 5 on Rap Genius

Muscle Beach is a section of Venice Beach, known for the exercise equipment and muscular guys who work out there. They flex muscles, but Frank is flexing his musical abilities

Even the most humble people have to flex sometimes!

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