The song "Bel Mercy" by Jengi seems to be a boastful and confident declaration about his music being the best or the "champion sound". The repeated phrase "It is a weepin' and a moanin' and a gnashin' of teeth" may refer to his competition being upset or angry about his success. The line "well, it comes to my sound which is the champion sound, believe me" suggests that he is very sure of his abilities and wants others to recognize him as the best. The phrase "It, w-w-w-w-we-well" and "Well, well" could reflect a sense of excitement or energy in his delivery, emphasizing his enthusiasm for his own music. Overall, the song seems to be a confident assertion of Jengi's musical prowess and superiority in his field.