Word: thingummy
Part of speech: Noun
Syllables: thin
gu
mmy
Definition: : someone one cannot remember the name of.
Morphemes:
Affix: thingum
Language: en
PoS: Noun
Meaning: thingummy; something unspecified whose name is either forgotten or not known
Affix: -y
Language: en
PoS: Suffix
Meaning: Forming familiar names, pet names, nicknames and terms of endearment.