“A meteorite is reportedly headed for Legoland. The devastation is expected to span a million square blocks” is a joke that was posted on Twitter by Jonnie W. on February 17, 2013. Legos are (usually) block-like toys; Legoland is a Lego theme park chain.
   
“A small meteorite is reportedly headed for Legoland. The damage is expected to be 50 square blocks” was posted on both Reddit—Dadjokes and Reddit—Jokes on May 5, 2020.
   
“I went to Legoland last week. People were lined up for blocks” is a similar joke.
 
   
Wikipedia: Lego
Lego (Danish: [ˈleːɡo]; stylised as LEGO) is a line of plastic construction toys that are manufactured by The Lego Group, a privately held company based in Billund, Denmark. The company’s flagship product, Lego, consists of colourful interlocking plastic bricks accompanying an array of gears, figurines called minifigures, and various other parts
 
Wikipedia: Legoland
Legoland (trademark in uppercase as LEGOLAND) is a chain of family theme parks, which has its main focus on the toy Lego. They are not fully owned by The Lego Group itself; rather they are owned and operated by the British theme park company Merlin Entertainments.
         
Twitter 
Jonnie W.
@Jonnie_W
A meteorite is reportedly headed for Legoland. The devastation is expected to span a million square blocks.
4:40 PM · Feb 17, 2013·Twitter for iPhone
   
Twitter 
Chris Darnall
@CDarnall1
A tiny meteorite is heading towards Lego-land, the wreckage is said to span 50 square blocks.
10:22 PM · Jul 26, 2013·Twitter Web Client
   
Twitter 
justin frank skvarek
@rabbitskvarek
I heard that lego land got hit by a meteor….. it took out 50 square blocks
6:51 PM · Aug 29, 2013·Twitter for Android
 
Twitter 
Bill Lagerquist
@BillLagerquist
A tiny meteorite is heading straight toward Legoland. The devastation is expected to spread 30 square blocks.
12:26 AM · Oct 9, 2013·Twitter for iPhone
   
Twitter 
Ryan Shannon
@ryshann91
A tiny meteorite is said to be heading straight for Lego land. The damage is expected to span 50 square blocks.
11:58 PM · Nov 7, 2013·Twitter for Android
   
Twitter 
Levi Kemp
@Kemp_Industries
A tiny meteorite is headed for Legoland, estimated damage range is 50 square blocks.
5:45 PM · Mar 28, 2017·Twitter for Android
     
Twitter 
Joel Smith
@Joel66Smith
BREAKING NEWS:
A tiny meteorite is headed straight towards Lego Land. The devastation is expected to span 50 square blocks.
8:15 PM · Mar 20, 2019·Twitter Web Client
 
Reddit—Dadjokes
Posted by u/ChildfreeAtheist1024 May 5, 2020
A small meteorite is reportedly headed for Legoland
The damage is expected to be 50 square blocks.
 
Reddit—Jokes
Posted by u/invertedparadoxxx May 5, 2020
A small meteorite is reportedly headed for Legoland
The damage is expected to be 50 square blocks
 
Reddit—Oneliners
Posted by u/Up-The-Irons_2 May 5, 2020
The explosion in Legoland was heard for 50 square blocks
 
LaffGaff
SMALL METEOR
By laffgaff May 7, 2020
A small meteorite is reportedly headed for Legoland.
The damage is expected to be 50 square blocks.