Men who exhibit both "metrosexual" and "meathead" tendencies. These men take pride in their style and looks to an extreme degree, particularly the size of their muscles.
Such attention to physical looks is typically attributed to the female gender, but meatrosexuals overcome this stereotype by pairing their effeminate qualities with muscles.
"The Situation" from TV's The Jersey Shore is a meatrosexual if I ever saw one! When he's not working out, he's probably at the salon getting his hair done.