lol.com

It is a silly website about epicness of Roberto Des Moines.

Robert: What are you doing today?
Adam: Gaming, why?
Robert: lol.
Adam: What?
Robert: lol
Both: lol.com

Joe Mama

A common male's first name, typically used before the word "mama" as a practical joke or prank for no particular reason.

Example:
Person 1: Hey, did you see Joe today?
Person 2: Who's Joe?
Person 1: Joe Mama!
Person 2: Your not funny, dude.