From Wiktionary, the free dictionary
From coccola (“cuddle”, noun) + -oso.
coccoloso (feminine coccolosa, masculine plural coccolosi, feminine plural coccolose)
- (neologism, informal) having a fragile personality; wanting to be pampered or shown affection
S'è messa a piangere per essersi scheggiata un'unghia. È tra l'altro coccolosa.- She started crying because she chipped her nail. She is, among other things, overly fragile.