Top Definition
Another word for a Penis. a post (penis) where jizz is ejaculated from.
i got my cum post out and squirted all over her!
by Alex Hodgson (A Trak) March 23, 2006

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An old and decaying sock sandwich.
"Eeeeeew, I just found some CUMPOST under Dave's bed!"
by talc-girl September 03, 2009

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A post formation, designed to accommodate the large quantities of cum that a man can produce. The idea is to aim and fire at this ejaculate column.
I am about to cum. Please hand me the cum post.
by Gregory Goofballington February 20, 2005

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A lowkey porn message primarily shared in groupchats amongst milf hungry teenagers
Dude, that cumpost made me cum buckets.
by jurinator February 13, 2017

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