Verbal irony is when what is said is the opposite of the literal meaning. One type of verbal irony is sarcasm, where the speaker says the opposite of what he or she means in order to show contempt or mock. Other types of verbal irony include overstatement (or exaggeration) and understatement.
Thanks for A2A. There are two excellent, well-informed answers here, so I'll just try to simplify. Dr. Falconer is of course correct; pre-weaning age (about 9 weeks or younger) kittens can drink cow's milk, or any milk. Neonates are not lactose intolerant; this develops gradually with age.
Four-week old kittens will still need to be bottle-fed although some may start eating canned kitten food mixed with a little kitten milk replacer (see instructions for bottle feeding) . Most 5 week-olds can eat canned kitten food and usually they start on dry kitten food at 6 weeks. If you are unable to adopt the kitten yourself, check various shelters, veterinarians and the PANT Network to see if someone can take the kitten.