I haven't a clue!!!
Is it that religious (Christian/Greek) acronym that means... "This do in remembrance of me."???
Maybe it means "Infernal Internal Revenue Code!"
LOL I like that one the best. Thanks, all, for your responses and links. I only recently began to see 'IIRC' show up on FR threads, and relatively frequently, so I thought it might be an FR 'house' acronym.
Thanks again and remember...
Don't send SPAM,...EAT IT!
INRI - I nearly reached India