Manwhore
A manwhore is basically just a male slut. They sleep around. The flirt with EVERY girl they see. And some just can't keep it in there pants. It takes a lot to be considered a Manwhore. It's definetly not something that should be thrown around for fun. To be a manwhore you probably: flirt with a lot of girls, (or guys if you I that way) you might hide it from other girls, (like cheating basically) or other thing like having sex with a lot of girls. In any case. Being a manwhore isn't a good thing and shouldn't be considered as one either.
For example: a boy named Addison WAS dating a girl named Naomi until she found out he was being a manwhore behind her back and dumped him