What does Ambu mean?

After he fell over for the third time, his friends decided to call the ambu after all.

Dutch student slang. This is a Dutch word. You will hear it a lot at Dutch universities, student associations and in student houses.

You mostly hear it when someone drank way too much and needs medical help. Luckily only a tiny part of nights out end like that. If in doubt, always call. In the Netherlands that number is 112. Also read what blackout means.