betsy:hey josh where's my bluetube you had it last?  josh:it's in the car,i took it off when i finished talking to linda
when we're not sure what some electric devices are called, somehow we mix them up unintentionally like bluetooth and youtube
"betsy:hey josh where's my bluetube you had it last?  josh:it's in the car,i took it off when i finished talking to linda" What is the definition of "bluetube"?