IPA: /ˈsɪmpərər/
KK: /ˈsɪmpərər/
A person who smiles in a silly or affected way, often to show approval or to be ingratiating.
The simperer at the party kept nodding and smiling, trying to win everyone's favor.
'Simperer' is derived from the word 'simper' (from Middle English 'simperen', meaning to smile in a silly or affected manner) with the addition of the suffix '-er' (meaning a person who). The word 'simperer' refers to a person who simpers or smiles in a silly or affected way.
Think of someone who is 'smiling' in a silly way ('simper') — the '-er' indicates that this person is one who simpers.