homer simpson - 'hum hum hum, mm doughnuts' hum hum hum this pizza is so good
a noise made when eating large mouthfuls of food, as opposed to the sound 'nom' - the sound for nibbling food
"homer simpson - 'hum hum hum, mm doughnuts' hum hum hum this pizza is so good" What is the definition of "hum"?