womanizeverb [ I ]
disapproving UK usually womanise uk/ˈwʊm.ə.naɪz/us/ˈwʊm.ə.naɪz/A man who womanizes often has temporary sexual relationships with women or tries to get women to have sex with him:
He drank, womanized, and wasted money.
womanizer
noun [ C ] UK usually womaniser uk/ˈwʊm.naɪ.zər/us/ˈwʊm.naɪ.zɚ/
a man who womanizes:
He was a gambler, a womanizer, and a drunk.
womanizing
noun [ U ] UK usually womanising uk/ˈwʊm.naɪ.zɪŋ/us/ˈwʊm.naɪ.zɪŋ/
Both his first and second wives divorced him on account of his womanizing.