interfixation
Interfixation is a linguistic phenomenon describing the insertion of sounds or syllables between existing morphemes or words to facilitate pronunciation or to create a new, often informal or jocular, word. It is distinct from epenthesis, which involves inserting sounds within a single morpheme. Interfixation commonly occurs in colloquial speech and can be observed in the formation of new words or in the playful modification of existing ones.
One common context for interfixation is the creation of compound words where a linking sound is added.
Another aspect of interfixation involves adding elements to create a humorous or expressive effect. This can