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1.
When two friends partake in the viewing of pornographic material without partaking in autosexual acts (i.e masturbation). Coined in the FX television show Wilfred. The man from whom Elijah Wood's character stole from but was told he didn't suggests porning out with his new found pal. Elijah Wood feels very uncomfortable.
Person 1: Let's go do some porning out.
Person 2: Weirdy.
by Ian Motherfucking Curtis July 08, 2011
 
2.
To overload oneself with pornography so that one might be left in a state of exhaustion following long masturbation sessions.
You see that dude over there with 3 monitors full of porn? Yeah man he's porning out.
by Syntactyx July 14, 2013