A big and defined chest or manboobs is male equivalent of big breasts and cleavage on women

Manboobs( gynecomastia) are made of the same tissues and cells that makeup female breasts so it makes sense to say that moobs are the male equivalents of breasts on a woman. Some women like it and do not care if their men has manboobs even if they are bigger than their own boobs.

A man's defined chest is attractive for most women and one of their preferred male body parts. They stare at them and feel attracted in the same way men like busty women. And many women want men who have bigger chest than her boobs.