Need feedback on my lyrics

im writing a song and i wanted feedback on the lyrics they go like

oh mummy mummy i am so spiffing

oh mummy mummy i feel a triffing

oh lovely porridge straight to my belly

oh rancid milk so bad so smelly

oh joyous day when there are berries

berries of blue and pink and cherry

berries that sparkle and glimmer with glee

berries for my porridge that i eat hastily

when berries are gone i sing a sad song

but not right now not for so long

my berries are here so i sing happily

berries for me and for mummy