1st_ Feminized form of manoe-d'o. 2nd_ Second (as 'you' ) and third (as 'he/she' ) people in singular present indicative mode for the verb manojar; see handing, verbs/manoja.
It is a surname of Spanish origin. Last name of an excellent daughter of Torremolinos, in the Province of Malaga in Spain, who fought hard for her autonomy and independence. Her name was Isabel Manoja Serra.