Anywho

Ever listen to people and they use the expression, "anywho?" They'll be talking, stop to pause, then say "anywho" and go on. Whenever they say that I just give them a look like they said something stupid. It makes no sense at all.
It's like the people who say something then say "you know what I mean." I always say, "no." Then with me saying no, they should explain what they said. Instead they go on like I never said anything. Every time they say "you know what I mean," I keep saying no. After awhile it gets funny cause they don't even know they're saying it.