LEGO Glossary
LEGO Glossary
Deciphering the secret language of the brick for our Rainbow Bricks community!
The "Who's Who" of Fans
AFOL
Adult Fan of LEGO. The heart of our community!
Adult Fan of LEGO. The heart of our community!
TFOL / KFOL
Teen/Kid Fan of LEGO. Our builders of the future.
Teen/Kid Fan of LEGO. Our builders of the future.
RLUG
Recognized LEGO User Group. (Like us, Rainbow Bricks!)
Recognized LEGO User Group. (Like us, Rainbow Bricks!)
Essential Building Terms
MOC
My Own Creation. An original, non-instructional design.
My Own Creation. An original, non-instructional design.
NPU
Nice Part Usage. Using a LEGO piece in a clever or unexpected way (e.g., using a croissant for architectural detail!).
Nice Part Usage. Using a LEGO piece in a clever or unexpected way (e.g., using a croissant for architectural detail!).
WIP
Work In Progress. A build that isn't finished yet—often seen on tables at "Talk and Sort" nights!
Work In Progress. A build that isn't finished yet—often seen on tables at "Talk and Sort" nights!
SNOT
Studs Not On Top. A technique used to achieve smooth, brick-less surfaces.
Studs Not On Top. A technique used to achieve smooth, brick-less surfaces.
Greebling
Adding small details to a build to give it a mechanical or textured look.
Adding small details to a build to give it a mechanical or textured look.
BURP / LURP
Big/Little Ugly Rock Piece. The pre-molded mountain elements.
Big/Little Ugly Rock Piece. The pre-molded mountain elements.
MOD
Modification. Altering an official set to suit your own style.
Modification. Altering an official set to suit your own style.
POOP
Part Out of Other Parts. A large piece that could have been built with smaller bricks.
Part Out of Other Parts. A large piece that could have been built with smaller bricks.
Buying & Collecting
| Acronym | Definition |
|---|---|
| MISB | Mint In Sealed Box. For the serious collectors! |
| GWP | Gift With Purchase. Exclusive promotional sets. |
| PAB | Pick-A-Brick. Buying loose parts at the LEGO Store. |
Go Even Deeper
Hungry for more? We recommend checking out The AFOL Slang Dictionary at BrickNerd. It’s an amazing deep dive into everything from "Erling Bricks" to "Dollar Bushes."
New: Rainbow Bricks Resources Page
Don't forget to visit our brand new Resources Page! It’s packed with helpful guides and local tools for NSW builders.
See These Builds in Person!
Check out the incredible NPU and WIP projects at our upcoming events.
View Upcoming Brickfest Events