Women who are most vulnerable to rape. Meaning their lifestyle or occupation gives the impression that she is marginalized in society and so can be raped without consequence. The word speaks of dehumanization.
A person who is easy to make a rap about.
For example, having a name, such as Vlad, which rhymes with many words, therefore allowing Vlad to be 'rapable'.
Erica: His name is Vlad
Tania: Wow, what a cool name, it rhymes with so many words. He's so rapable.
Rippable is a word I accidentally made when I was talking about how bullyable someone is. Like when you rip on someone. Ripping on someone. They're Rippable