May be an allusion to Mase's You Ain't So Smart, but straightforwardly a reference to the ending of "Good Country People."
Opening Quote
The only thing an old man can tell a young man is that it goes fast, real fast, and if you're not careful, it's too late. Of course, the young man will never understand this truth.
David and Tamler return to the Southern Gothic well and talk about Flannery O'Connor's short story masterpiece "Good Country People." A nihilistic atheist philosophy PhD named Joy or Helga (depending on who you ask) lives with her mother and some tenants on a farm in rural Georgia. One day 19-year-old aw-shucksy Bible salesman comes to the house and shakes up her philosophical convictions. Plus a case study of a sexsomniac who masturbates (and more) in his sleep.
Self-maturbation is a redundant term, since masturbation implies an act done to oneself. This may be a product of overly cautious writing or it may be the author's intent to imply the existence of masturbation not done to oneself.
Mutual Masturbation
There are at least three candidate meanings.
The Symmetrical Parallel Reading — two people each masturbating themselves, simultaneously, side by side. Grammatically the most literal: mutual as "each doing it to themselves, together."
The Reciprocal Reading — each person manually stimulating the other. This is probably the dominant colloquial usage.
The Metaphorical Reading — often used figuratively (empty flattery, etc.)
The Incoherence Argument and the Eliminativist Conclusion
The conversation gestures at but doesn't fully articulate: if "mutual masturbation" (in the reciprocal sense) is a coherent and accepted usage, then "masturbation" does not inherently require that the agent and patient be the same person. But if that's true, then "masturbation" just means manual genital stimulation by hand — and the "self" component is not definitionally built in.
Now you can run a reductio: if masturbation doesn't require self-application, and if "mutual masturbation" is just two people doing it to each other, then "masturbation" collapses into a subset of ordinary sexual touch, and the category loses its distinctiveness. You could argue from this that masturbation as a standalone coherent category doesn't really exist — it's either redundantly self-specified, or it bleeds into general manual stimulation.
