Pronounced nothing like "Mad-hooker"! The a is pronounced somewhere in-between the u in "mud" and the a in "father". Dh is like an aspirated d sound, and lastly, the a in -kar is the same as the a in the madhu-. So, really, it is pronounced like Muh-too-kahr, with a little trill on the r at the end.
So, really, it is pronounced like Muh-too-kahr, with a little trill on the r at the end.