[ pɔ:t'mantəʊ ]
■ noun ( plural ~s or ~x -əʊz )
1》 a large travelling bag made of stiff leather and opening into two equal parts.
2》 [as modifier ] consisting of two or more parts, aspects, or qualities: a ~ movie.
Origin
C16: from Fr. portemanteau , from porter 'carry' + manteau 'mantle'.