RUIGI!!!
As for the acronyms and terms, lemme try to fill you in on the important ones I remember. You know most of the basic ones, but you might not know what we call them. Some of the advanced techniques at the bottom, you'll have to either ask about or search for, since I'm not going into much detail in this post.
BASIC ACRONYMS and TERMS
SH = Short Hop - this one you probably already know from the previous post.
AD = Air Dodge - same as above.
FF = Fast Fall - smashing the analog down while falling in the air to fall faster.
NAir, FAir, DAir, UAir, BAir = Aerial Attacks - you know these.
FSmash, USmash, DSmash = Smash Attacks - same as above but for Smash Attacks.
FTilt, UTilt, DTilt = Tilt Attacks - again as above but for Tilt Attacks.
AAA = Jab Combo - his "punch, punch, butt" attack with the A button.
Rising Cyclone - a Luigi Cyclone that rises by quickly tap B; easier to rise if done right out of a jump.
SJP = Super Jump Punch - the Up Special that's usualy used to recover.
FJP = Fire Jump Punch - the SJP that is done while "inside" an opponent and catches fire with a loud "Bing!"
ADVANCED TECHNIQUE ACRONYMS and TERMS
AT = Advanced Technique - the advanced moves you should learn to consider yourself really good.
WoP = Wall of Pain - repeatedly hitting opponents away in the air as they try to land back on the stage; BAir is great for WoPs.
OoS = Out of Shield - moves and attacks that can be done while shielding: Jump, SJP, FJP, USmash. Note: you need Tap Jump On.
SHADFF = Short Hop Air Dodged Fast Fall - to quickly land while still invincible; great after a SH Aerial Attack.
SHDANAUT = Short Hop DAir to NAir to UTilts - short hop aerial attacks that flow nicely into a UTilt combo; great for low damage enemies.
DAC or DACUS = Dash Attack Cancel [Up Smash] - a difficult AT that results in Luigi sliding a good distance while chargning a USmash.
Hyphen Smash - a Dashing Up Smash; easier to do than a DAC, but with similar results for Luigi. Plus it can be done from a stan-still.
Up Tilted FSmash - holding Up as you perform an FSmash to tilt Luigi's hand up for a more powerful effect.
Jumpless Rising Cyclone - a Rising Cyclone without the help of upward inertia; you have to press B a lot faster to rise.
Jab Grab - Grabbing as soon as possible after a Jab; very useful because enemies tend to be open to grabs after a Jab.
Jab FJP - Doing an FJP after a Jab that's within FJP range. Killer.
Jab Cancel - tapping Down (crouch) quickly after a Jab to cancel the AAA and follow with other attacks (DTilt, DSmash, FSmash, or another Jab).
That's all I remember for now. Check out the sticky Strategy Guide thread for some more.
