diaper baby

A man who has matured in years, but not in an emotional sense. If his inflated, fragile ego is crossed, he looks like he might have a crying fit, or might lapse into silent-treatment mode, or have an embarrassing tantrum in one way or another, not unlike that of an infant or a small child. Usually the cause of his 'distress' is his significant other when she (or he) is not dedicating 100 percent of her (or his) time and attention to to the Diaper Baby. Sometimes 99.9 percent of time, attention, and flattery is not enough for a Diaper Baby. His infantile disposition can also be triggered by unpleasant yet petty and otherwise insignificant interactions with others, such as with co-workers; when receiving unsatisfactory customer service; when his dog doesn't gaze at him with a look of unconditional love 24/7, etc....