* To steal or plagiarize: This is the most common slang meaning of "crib." Someone might say, "He cribbed that whole essay from Wikipedia."
* A cramped or uncomfortable living space: This meaning is less common, but still exists. For example, "They live in a tiny crib with five kids."
It's important to note that the specific meaning of "crib" depends on the context. If you're unsure, it's always best to ask for clarification.