When someone doesnt want to say no but are making it blatantly obvious.
Person 1: Hey you wanna go out sometime?
Person 2: Hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
a very very veryvery very very very very very very very very very very very very very very very very very very very very very very very very very very long way of saying "no" or "hmm" etc
Sam: wanna dance?
You: HmmmmmmmmmmmmmmmmmmmMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm............................
*awkward*
Sam: okayyy then