But there is one tic that has become prevalent which bothers me much more: "Sort of." This is different than "you know" "like" or "ummm."
"Sort of" or "kind of" softens and qualifies whatever it is we are saying. It's as if we're not confident to just state what it is we wish to communicate.
Example from this morning's New York Times:
Phil Mickelson played through tough conditions, finishing at one-over 73. "It kind of affected my attitude a little bit," he said.
Kind of? A little bit? The guy finished ten strokes off the lead!