Slang originally held to highlight the segregation-induced laziness of negros in pre-civil rights era America.
The movie "Clerks 2" attempts to re-conceptualize the word by proposing that there is nothing inherently black about porches, monkeys, or laziness.
From Clerks 2:
Randal: Since when did "porchmonkey" become a racial slur?
Dante: Since ignorant rednecks started saying at a hundred years ago.
Randal: "Porchmonkey" is something my grandmother use to call me because I use to sit on the porch all day looking at the neighbors.
Dante: That's like calling someone a "kike". Did you ever think that your grandmother was a racist?
Randal: No way. She had the utmost respect for the Jewish community. She use to tell me to be nice to the Jewish kids or else they'd put the sheeny curse on me.
Dante: WHAT THE FUCK!?
Dante: Sheeny is a racial term for Jewish people...your grandmother was a racist.
Randal: My grandmother was not a racist! Wait... Now that I think of it...she did refer to a broken bottle as a "nigger knife" once. Maybe my grandmother was kind of a racist.
Dante: You think?
That kid who sits alone at lunch every day, eating his dessert.
Seth: Alright, let's stop this and just go get some dessert.
Evan: No, I can't. I gotta...go meet my counselor, I'm picking out my classes for next year.
Seth: ...what? So I gotta sit here and eat my dessert alone like I'm fuckin' Steven Glansberg?
*points at Glansberg*
Evan: I guess...yeah...I mean, what do you want me to do?
1. Used to describe someone who likes and actively indulges in art.
2: Used to describe self: Defining ones identity by non-conformity to the standards of others. Ie: Conforming but with the illusion of integrity because ones standards are created from the notion of being "not theirs".
i.e., ones standards still depend the on opinions and choices of others.