Question: what is it called when you put two names together?
Answer: A portmanteau (/pɔːrtˈmæntoʊ/ ( listen), /ˌpɔːrtmænˈtoʊ/) or portmanteau word (from French "coat rack") is a linguistic blend of words, in which parts of multiple words or their phonemes (sounds) are combined into a new word, as in smog, coined by blending smoke and fog, or motel, from motor and hotel.