Mama Bass is an obese bass who first appears in the episode "Moving Bubble Bass." She is Bubble Bass' mother.
Like her son, she is an obese olive green and light green-skinned bass who wears glasses. She is much larger than her son, who is tall himself.
She wears a bright blue tracksuit that has a white stripe running up the side of the tracksuit. The tracksuit's collar and sleeves' ends are also white. She has orange puffy hair, a pair of golden spherical studded earrings, and wears dark purple lipstick.