What extremely indecisive people say to answer every single question in order to avoid giving a straight forward answer. It is often sais for no damn reason to respond to a statement which would normally not even require a response.
Edgar: That'd be cool Arjun: Uhhh I guess.... Me : Goddamn it... *procedes to pimp slap that idiot* OR Jenny: Are we gonna go tomorrow? Arjun: Uhhh I guess.... Jenny: What the do you mean I guess?!! It's a yes or no question damn it !!