The act of one's rectum muscles relaxing so completely that feces flows out without any effort or control devastating all in its path like an avalanche.
ohhhh bro after eating that taco I was hit with a series of shavalanches all night long.
shalanie is a nice caring person, she honesty doesn't give a damn. Deep down she's a caring person, but don't get on her bad side or she will mess you up. She is a brilliant minded in any situation and therefor if you have a shalanie keep her close in your heart as she will do the same.
The phrase originates from Shymalan's notorious reliance on twist endings. It usually holds a scornful connotation, due to the lackluster quality of many of Shymalan's recent films.
It is most commonly seen on boards such as Reddit, Tumblr, or 4chan.
Person A: "...and then it turned out that he was actually a transsexual midget standing on another midget's shoulders."
Person B: "..."
Person C: "Directed by M. Night Shymalan."
An amazing girl that has many good qualities.she's intelligent and beautiful. They also are very nice and caring, however only to friends and other special people. They can also have extreme inner beauty that is very hard to find, but when it is found, you realize she is better than any other girl you may meet.She is weird and gets easily bored. Always looking for new things to do. She loves to smile and laugh.A person everyone loves.Gives good advice.