Second tenor highest riser blessed clever compromiser
I'll be proudly mouthing watermelon every song

from Why? – By Torpoedo or Crohn's Lyrics on Rap Genius

Meaning

Mouthing the word “watermelon” is a common trick used by kids in choirs to fake participation.

To help improve the meaning of these lyrics, visit “By Torpoedo or Crohn's” by Why? Lyrics and leave a comment on the lyrics box