To dream of a crocodile indicates that you are either too assertive (your bite is too large) or that you are losing a grip on things (losing your bite) – once a crocodile has a grip on you they will not let go. You know which applies to you. This dream is healing and intends for you to get renewed strength to regain your grip on things by healing your bite. You should be able to take a bite at life and only bite off what you can chew. See teeth for more.
A crocodile in a swamp represents your colon. Here the crocodile symbolizes a health warning so look to the other symbols in the dream to indicate what you need to do to prevent it.