- MOC = My Own Creation
- AFOL = Adult Fan Of LEGO
- TFOL = Teen Fan Of LEGO
- SNOT = Studs Not On Top
- HOT = Hole On Top
- DOF = Degrees Of Freedom
- TRU = Toys R Us
- SMUX = Sensor MUltipleXer
- S@H = Shop At Home (LEGO's online store)
- BOGO = Buy One Get One (free)
- OoS = Out of Stock