No worries and welcome!
Yes, it can be a bit confusing!
Citarobics, absolutely correct. Up and down on the suspension to bleed entrained air.
Offside. RHD Drivers side. Right-Hand side of the car when sitting in the drivers seat and looking through the windscreen. Nearside, the opposite, nearest the kerb.
IIRC. Yes, although these internet-speak acronyms are not as much used here as in some forums thankfully.
Another one. "BoL" Book of Lies, the pet name given to the Haynes series of Service and Repair manuals

Some other forums call it the "Joke Book". They're not that bad really, just very incomplete and sparse in some important areas where detail is required.