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1.
A cleaner, not-so-obvious way to describe the face one gets immediately after ejaculating (post-coitus, or, more often than not, post-porn)
Everyone in the music video jizz in my pants does the post face at least five times.

"Dude I walked into my dorm earlier and John suddenly slammed his computer shut and looked at me with a post face. Way too obvious."
by Rafael13 September 11, 2011
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