The Meaning of Pleins

The technical definition in Webster's at least is the use of more words than those necessary to denote mere sense. And then let's talk about some kind of examples before I get into the etymology. What do you think are some of the most common pleanisms? Ice cold, I love that. True facts. In fact, a free gift. False pretenses. Nape of the neck. Oh my God, there was thought of that.