What is Um Hm?
1.
A word coined by NevaehDawn to halt Mez's converstional efforts and/or show her disinterest of the given topic
mez: so i was playing star craft yesterday
nevaehdawn:um hmm
mez: blah blah blah (b/c that's all nevaeh hears)
2.
stupidist word in the world.. verbal brick wall.. relates no meaning other than the fact that it halts any further thoughts
person 1: Hi Person 2 how are you?
person 2: um hm
person 1: ...
person 1: well the weather sure is nice today
person 2: um hm
person 1: ....