General Starcraft 2 Vocabulary

gl hf Good luck have fun (said at the beginning of the game)
gg Good game  (said at the end of the game, before surrendering or winning)
np No problem (a 'you're welcome' for helping your ally stay alive)
NR No rush  (said at the beginning of the game if a player wants to play the game without rushing. Adding a number after "NR" determines the time that the peace treaty, the time without rushing, will take place. For example, not rushing for 10 minutes would be "NR10")
RE Rematch
No RE? No rematch (invitation stated at the end of the game for a rematch)
RC / RM Request to recreate the game under the same condition
TM Team Melee

T Terran, also known as Ran or Tran
BC Battle Cruiser
CC Command Center
M&M Marines and Marauders
MMM Marines, Marauders, and Medivacs
OC Orbital Command Center
PF Planetary Fortress Command Center
PDD Point Defense Drone (of Raven)
Port Starport
Rine Marine
RR Reaper Rape (refers to early Reaper rush)
Rax Barracks
Wall-In Using structures to make your base inaccessible to the enemy, usually Supply Depots are utilized by Terran players to do this

P Protoss, also known as Toss
Core Cybernetics Core
DT Dark Templar
HT High Templar
Nex Nexus
Robo Robotics Facility
Speedlots Zealots with Charge upgrade researched
Gate Gateway
MS Mothership

Z Zerg
Blinds Banelings
BB Baneling Bust (refers to the utilization of Banelings to knock down enemy defensive structures or Wall-Ins)
Hatch Hatchery
Hydra Hydralisk
Lings Zerglings
Muta Mutalisk
Pool Spawning Pool
Speedlings Zerglings with Metabolic Boost upgrade researched
Ultra Ultralisk
OS Overseer
OV Overlord

R Random race option
AA Anti-Air
FF Focus Fire
FE Fast Expansion
upg Upgrade
Floater Base that can only be reached by air units
Proxy  Structures positioned away from main base
Natural / Nat Expansion Harvest area right outside of the base, or that that is most accessible
Peon / Worker Any harvester (Probe, Drone, or SCV)
Player 12 Units left over when a player leaves the game

Sim-City Placing buildings in a strategic way to your advantage
AoE Area of Effect (pertaining to unit skills/attacks)
APM Actions per Minute (pertaining to player clicking and commands)
BO Build Order
MBS Multiple Building Selection
Teching Up Researching various upgrades for your units
Mass Unit Creating a large amount of a particular unit
Rep Replay of the game


B Retreat / Back Up
D Defend

Harass / Harassment Attacking the enemy's structures or harvesters in order to injure their economy
Rush / Rushing Extremely fast and early assault
Turtle / Turtling Defending your base for the sole purpose of upgrading your units and technology
Push Planned attack, not to be confused with a rush

SC2 Starcraft 2
Lag Hack Terrible lag that severely hinders the gameplay experience
POY Poo on you (basic trash talk)
bm Bad mannered player
qq Whining or getting angry about the game
cheese Term used frequently to describe out-of-the-norm strategies such as surprise attacks

Macro Macromanagement (build order, general game strategy, when you're making units, what technology you're researching, etc.)
Micro Micromanagement (movement of individual units during battle, where to place them, when to use powers, how to use terrain to your advantage, how to exploit enemy unit speeds, disabilities, etc.)