CrossFit has it’s own lingo and here’s a few definitions to help you out!

AMRAP: As many Repetitions (or Rounds) As Possible – typically in a specified timeframe
As Rx’d: As prescribed – the suggested parameters for a given exercise
Box: A CrossFit gym
BW: Body weight
CFT: CrossFit Total – The combined weight of your max squat, press, and deadlift
Chipper: A workout with many reps and many movements (you chip away at it)
C&J: Clean and Jerk (Olympic Weightlifting exercise)
CTB or C2B: Chest to Bar (as in pull ups)
DL: Dead lift
DU’s: Double Unders – two turns of the jump rope per jump
EMOM: Every Minute on the Minute
HSPU – Hand Stand Push-Up
HPC – Hang Power Clean (starting position of the Olympic lift)
HPS – Hang Power Snatch
KB: Kettle Bell
K2E: Knees to Elbows (similar to T2B)
MetCon: Metabolic Conditioning
MU: Muscle Up – A combination of a pull-up and a ring dip
OHS: Overhead squat
PJ: Push Jerk (Olympic weightlifting exercise)
PR: Personal Record
Rep: A repetition or one instance of a given exercise
RFT: Rounds for Time – A set number of rounds in any given WOD which is scored on time taken to complete
Scaled: To modify the exercise to your individual ability
SDHP: Sumo Dead lift High Pull
SU:  Single unders (regular jumping rope)
Tabata: A protocol of 20 seconds of exercise followed by 10 seconds of rest
TGU: Turkish Get Up
T2B: Toes to Bar
Unbroken: Perform all in a row or start over at the beginning
WOD: Workout of the Day