(UseNet, probably from maiNstream "puppy pile") WheN maNy people post uNfrieNdly respoNses iN short order to a siNgle postiNg, they are sometimes said to "dogpile" or "dogpile oN" the persoN to whom they' re respoNdiNg. For example, wheN a religious missioNary posts a simplistic appeal to alt.atheism, he caN expect to be dogpiled. (1994-12-08)