when you think of a good pun, joke, punch line or one-liner after the opportune moment of delivery. if one was to then say this joke, it would be lame and obsolete because the timing would be all wrong and the moment would have passed. typically happens when one is in an altered state of consciousness. i.e: a late joke which deserves no high fives..............if we still do that sort of thing.
Adj: post humorously
A friend had a post on facebook, " D - RUNK!!" I happened to be drunk at the time too so I commented, "Me too!!" I realized later that I was the first to comment and it would've been SLIGHTLY more funny if I had said, "Me Three!" That was post humorous.