down with slang
There appears to be other definitions of the word rape that may be being used in this manner. For example:
(n) an act of plunder, violent seizure, or abuse; despoliation; violation
(v) to plunder (a place); despoil.
(v) to seize, take, or carry off by force.
I think the word rape used in this context of frape and facerape is along the lines of raping and pillaging, not forced sexual action.
In response to the other response about the use of the word killer, I'm not a fan of slang. It gets out of control to the point where some people appear to be speaking an entirely new language rather than English. Let me know if you find a victim of a killer complaining about the slang use of the word killer then we'll discuss it further.
(You may keep any spelling or grammatical errors you find as I do not want them.)