DARK AGES – The period from when you stopped building with LEGOR as a child and then started again.
DESIGN ID – A reference number you can find on the underside of every LEGO piece since 1985. In the community they are usually just called the part number.
DRAFT – A group of LEGO fans each bring a copy of a LEGO set, sort out all of the LEGO elements, and take turns picking the parts they want. An easy way to get the parts you want in larger quantities without buying multiple copies of the set yourself. Read a detailed description on SEALUG.org.
DSS – Dreaded-Sticker-Sheet. LEGO, if you are reading this, please, more PRINT and less DSS. Thanks in advance, Everyone Everywhere.
ELEMENT ID – A reference number denoting a LEGO parts colour and shape.
ERLING aka HEADLIGHT BRICK or WASHING MACHINE. Designed in 1979 by Erling Dideriksen.
FAFOL – Female Adult Fan Of LEGO
GREEBLES – Fine detailing added to the surface of a larger object to make it appear more complex, and therefore more visually interesting. Often used in spaceship MOCs.
GRÜSCHTELING – (pr. Groo-shtell-ing) – The sound made when sifting through a mass of LEGO. Listen to the All Sorted intro music to hear some GRÜSCHTELING.
ILLEGAL – LEGO building techniques that break the “rules” for connections between LEGO elements used by official LEGO set designers – particularly connections that stress the LEGO elements. For example, inserting a plate between the studs on a brick.
ISD – LEGO set #10030 Imperial Star Destroyer. A large LEGO set frequently used as a scale reference for very large LEGO fan creations.
JUMPER PLATE – A 1×2-stud LEGO plate with only 1 stud in the center.
KFOL – Kid Fan of LEGO.
LDD – Lego Digital Designer – Official, free software for PC and Mac that lets you build LEGO models virtually.
LDRAW – Open standard for LEGO CAD programs that allow the user to create virtual LEGO models and instructions.
LUG – LEGO User Group. They are filled with people just like you!
STAMP – STicker Across Multiple Parts. When official LEGO instructions call for stickers to be applied over multiple parts. Hated by AFOLs as it makes the parts impossible to separate and use again.
STUD – The bumps on the top pf a standard LEGO Brick.
SWOOSHABLE – Any build that compels people to pick it up and fly it around the room while making flying noises.
TFOL – Teen Fan of LEGO.
TLG – The LEGO Group
TRU – Toys ‘R’ Us. They sell LEGO. Sometimes they overcharge for LEGO and we hate them. Sometimes they have great sales of LEGO and we love them. Yes, our love can be bought, but it needs to be a great sale, we have standards.
TUBE – The round barrels on the underside of a standard LEGO Brick.
UCS – Ultimate Collectors Series. An irregular series of large LEGO models designed for older builders.
VIGNETTE – A small LEGO scene, usually built on a base 8 studs long by 8 studs wide.
WIP – Work In Progress. Aka All my MOCs.
WOAFOL – Widow/Widower of Adult Fan of LEGO. Pronounced as ‘woeful’. The long-suffering partner that accepts, to varying degrees, that there are three people in their relationship… well, two people and a bunch of plastic.
YFOL – Young Fan Of LEGO. I guess this is for those fans that aren’t a kid (KFOL) anymore, but also aren’t quite a teen (TFOL).