Lego Blocks 

when two people are always stuck up each others asses.

Katie and Jodi are major Lego Blocks

Lego Blocks by harbour hop February 20, 2007

Lego blocks 

cheaper landmines

my brother keeps coming into my room without warning so I layed tons of Lego blocks that looked like the floor all over my bedroom floor so next time he comes in he will regret it

Lego blocks by Hehe I cheated March 22, 2021

LEGO blocks 

Tiny bricks that induce extreme amounts of pain when stepped on. When dumped on the ground in large quantities, they essentially create a barrier to bare feet.

"why are you crying, stepsis?"
"I stepped on LEGO blocks"

LEGO blocks by youhavesucsessfullyturnedmeon July 9, 2023

Blue Lego Block of Ambiguity 

The blue Lego-esque block shown in stead of Adobe Flash content when visiting a website in Apple's Mobile Safari browser. It has come to symbolize one of the greatest criticisms leveled against an otherwise highly regarded mobile browser capable of rendering most web content true to form. The debate over Flash's omission has swelled up once again with the introduction of the iPad which also utilizes Mobile Safari sans Flash support, albeit on far more capable hardware. While Apple claims to provide the "entire internet in the palm of your hand" their detractors are quick to remind the world that the "entire internet" includes quite a bit of Flash.

Person: OMG, click this link to check out a hilarious clip on Hulu from last nights Family Guy.
iPhone User: Uhhh, when I get home...
Person: Wait... just use your iPhone, lets watch it now!
iPhone User: Well, I tried..
Person: And....
iPhone User: Blue Lego Block of Ambiguity, I don't want to talk about it

Blue Lego Block of Ambiguity by tokyotapes January 30, 2010