A comment or pun that you don't understand or hear properly at the time, but you get it soon after.
The realisation hits you later what the comment/pun means.
*Filthy comment you missed*

A couple of seconds later...

"Aw man, ya dirty bastard"
"Bit of a boomerang comment for you there?"
"Yes, the realisation of your filth, hit me ferociously."
by People upset me. September 23, 2015
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