Learn how to say Portmanteaux correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word portmanteau:
noun (plural portmanteaus or portmanteaux /-əʊz/)
a large travelling bag, typically made of stiff leather and opening into two equal parts.
[as modifier] consisting of or combining two or more aspects or qualities:
a portmanteau movie composed of excerpts from his most famous films
mid 16th century: from French portemanteau, from porter ‘carry’ + manteau ‘mantle’