Where does iirc come from?
Like many internet-slang terms, the exact origin of iirc is unknown. It was first posted to Urban Dictionary in the 2002, though it has been used on the internet since at least the early 1990s.
During the beginning of its life, iirc was normally explained to mean “if I remember correctly.” However, as time went on, it became increasingly defined as “if I recall correctly.”
As the internet spread, so, too, did iirc. Like other internet slang, such as omg, lmao, wtf, or lol, iirc likely stuck around due to its usefulness and its ability to express a long, stock phrase quickly.
Who uses iirc?
As it’s an internet term, iirc is used by people communicating via text. It makes appearances in text messages, forums, video-game chats, social media, and comments, among other forms of digital communication. And, it tends to be more common on sites like Tumblr or Twitter, which can be more informal, younger spaces.
It is favored by heavier internet users, as it doesn’t quite enjoy the mainstream popularity of wtf or lol.
Given that the phrase if I recall/remember correctly has a formal air, the abbreviated iirc can also create for a humorous contrast.
IIRC some of the Kotaku authors injected super toxic language in to every Ouya article they wrote about.
The Palmtop Tiger, Kotaku, July 2014
IIRC I wasn't allowed to attend a sleepover party because the plan was to watch mortal kombat
@cunninghamp220, January 2018
why do you keep rolling to see if you're attracted to non-humanoid monsters’ - my dm to me last session, iirc, right before I tried to flirt with a manticore.
@menderash, January 2018