HackerSlang

ACK ping

`slang': informal language from mainstream English or non-technical subcultures (bikers, rock fans, surfers, etc). `jargon': without qualifier, denotes informal `slangy' language peculiar to or predominantly found among hackers -- the subject of this lexicon. `techspeak': the formal technical vocabulary of programming, computer science, electronics, and other fields connected to hacking.

see: JargonFile