look up any word, like dirty sanchez:
 
1.
When a person gives a more detailed explenation of a situation/opinion than people actually care for.
"Sorry i was a bit late today i had to take my cat to the vets" (that would be an ideal place to stop) but then if the person goes into a 5 minute story about whats wrong with there cat, vet insurance, what the vet looked like, how long it took ect ect.. then the relpy would be

"OMG lifestory"
by Bobertybob January 15, 2009
 
2.
When someone gives an excuse about why they are sucking ect. For example when someone gets owned on a game and cant execpt defeat.
Tim: "Damn, you only killed me cause i got serious lag."

Ian: "I dont want your life stories"
by Sam Robinson February 17, 2004