How come a guy can check out a hot girl, but If I check out a hot guy I am a sl**?

Me neither its old fashioned and in this day an age shouldnt happen . It pisses me off when women are called degrading names because they have normal thoughts and feelings . Why is a bloke a stud but a girl a slag its wrong . I have your back girl ignore those with dark age ideals and be your own person . Anyone who cant respect you isnt worth bothering with .