1. Sex. Hot, dirty sex.
Ex: We’re getting mad-rutty tonight girl. Consider your architecture warned.
2. A general state of arousel/being very horny.
Origin: Borrowed from the comic Achewood. The strip in question can be seen here.
Slang terms originated from our linguistic cultural history from our friends and family. Regional dialects at their best, friend to friend and household to household. Sometimes inspired from the Television and pop culture we consume, and occasionally terms of insult and endearment as well.
In short, a collection of dirty words.