A habitual seducer of women. A man who is sustaining supposedly "exclusive" relationships with multiple girls simultaneously. A is a big flirt and enjoys making woman fall head over heals in love with him, even-though he has like 10,000,00 other girl friends.
A combination of the word Joma (the man who inspired the creation of the word) and Womanizer
The girl thought she found the love of her life, but it turns out that he was a total Jomanizer.