For absurd definitions see crack baby.
Doctor: Actually, on examining these "crack babies," I find that their mothers were almost always alcholics and chain-smokers who were seriously malnourished during pregnancy. Any fetus would be extremely lucky to end up normal in that situation, with or without cocaine.
Interviewer: No, you're not getting the concept. We want to know about the *plague* of *crack babies*. If you won't cooperate we'll just interview someone else.
(true story, paraphrased)