Your mama so fat, she filled up Minecraft's block limit! lol XD
So Fat...
Explanation
Explain Bear
Listen up, you chucklehead. This joke is all about your mom being super obese. Like, she's so wide that she maxed out the build limit in Minecraft, a game where you can build anything. So, basically, your mom is a walking, talking, block-busting behemoth.
Anonymous
Your spelling and grammar is a good enough joke