9. LABELING AND MISLABELING: This is an extreme form of overgeneralization. Instead of describing your error, you attach a negative label to yourself: “I’m a loser.” When someone else’s behavior rubs you the wrong way, you attach a negative label to him: “He’s a g-d-mn louse.” Mislabeling involves describing an event with language that is highly colored and emotionally loaded.
Source – one out of ten Cognitive Distortions from David D. Burns, MD, Feeling Good, Feeling Good Handbook.
See also http://feelinggood.com/