Portmanteau meaning

a large travelling bag, typically made of stiff leather and opening into two equal parts.

Word coined from two different words ex. Podcast coined from (portmanteau) from ipod and broadcast

consisting of or combining two or more aspects or qualities.

"a portmanteau movie composed of excerpts from his most famous films"

A portmanteau is a large suitcase. 

The word comes from French porter "carry" and manteau "mantle, or cloak