From the Urban Dictionary :
Roadhouse
A badass one word response that can be applied in a variety of situations.. for example: hello, goodbye, yes, no, f*ck yea, its a good possibility, i agree with what your saying, lets do it, that's a nice flower blazer your wearing, what are you doing tonight, that could potentially be gay but im gonna go along with it, i don't feel like paying 5 extra dollars so were getting keystone, ect.
guy 1- "Dude, you fell down the stairs and p!ssed on the rug last night"
guy 2- "...Roadhouse"