A male who, for a living, makes women happier in anyway he can. Man-Sluts have a tendency to wear tight shirts, be ridiculously good-looking, be only barely straight, and randomly strip, especially in the presence of many girls. Although many seem to be innocent, they are far from it. If you're not careful with a Man-Slut, you might find yourself the next morning with a blurry memory of last night and condoms on your nightstand.
"Out of nowhere, this random guy randomly threw off his clothes and started freaking with me... and I kinda liked it."
"Oh... must've been a Man-Slut."