What is the name of the female end of this damn cord?

Disclaimer: in the EU, original cord stopped working for a portable camping cooler.

Reverse image searching led me to (what I thought) was the same replacement cord but it was too small. Cannot for the life of me find the correct name of this damn female end. Would very much appreciate help with it. Does not have to be a car cigarette port to replace, can be an EU wall plug as well