uh huhuh huh /ʌ ˈhʌ,ˈʌ hʌ/ interjection informal 
a sound that you make to say ‘yes’, or when you want someone to continue what they are saying: 
‘Can I sit here?’ ‘Uh huh.’
a sound that you make to say ‘yes’, or when you want someone to continue what they are saying: ‘Can I sit here?’ ‘Uh huh.’