“iykwim”. “iykwim”. “iykwim”. My bet is that none of those abbreviations (ha ha, they’re all the same) mean anything at all to you. At most it might look like a cryptographic sequence of letters that allegedly mean something cool.
Want to know what it means? It’s a lot simpler than you thought, it simply means “if you know what I mean“. I have used this one on so many people, and I have yet to find someone who can decipher what it stands for.
Now you know, thanks to me. I’ll take the signing of autographs later!