A Yogi-ism is a witty comment or statement that was supposedly said by Yogi Berra. The comments are usually blatantly obvious or incorrect or said in jest to get a laugh. Some of the more famous Yogi-isms are:
1) The game isn't over until it's over.
2) Baseball is 90 percent mental and the other half is physical.
3) You can observe a lot just by watching.
4) I always said that would be a record until it was broken.