{adv.}, {informal} Yes. - Used only in speech or when recording dialogue. * /Are you going to the Fair? Uh-huh./ * /We were in Alaska, um-hum, but that was long before the earthquakes./ * /When I asked for an appointment, the nurse said, "Um-hum, I have an opening at four o'clock on Friday."/ Contrast: HUH-UH.
UM-HUM
Meaning of UM-HUM in English
Slang English vocab. Английский сленговый словарь. 2012