IPA: /ˈtʃɑːrmɪŋər/
KK: /ˈtʃɑːrmɪŋər/
Having a quality that attracts or delights others; pleasing or enchanting.
Her charminger personality made everyone feel welcome at the party.
Comparative: more charming
Superlative: most charming
The word 'charminger' is derived from 'charm' (from Old French *charme*, meaning a magical spell or incantation) and '-er' (meaning a person who). A charminger is a person who casts charms or spells.
Think of someone who casts a 'charm' — that's what a charminger does, as the '-er' indicates a person who performs that action.