snavalanche 

A large amount of snot that comes out of your nose and gets all over your face/clothes/innocent bystanders when you sneeze.

1.) Man, this cold gave me a snavalanche so bad I had to change my clothes.

2.) Don't bring that cat near me unless you want to see a monster snavalanche!

snavalanche by THDaddy March 19, 2008

Shavalanche 

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.

I got so pitted I shavalanched my pants.

Shavalanche by Shiavo August 19, 2009

spamalanche 

An excess flood of spam.
Usually occurs during a chat or when opening your email inbox.

(In a chatroom)
6ubl3rf4n: I know, so cool
DarkLight: mah fav movie 2
random spammer: *&^*(OIUGHUIHGtghy97tfy7y9u9ugt7yfut7ig
random spammer: UIHGY(&T&YUIH&y80iout798^&(*^*Uihgyihgt79y*U
random spammer: T&*OUIYT*UOIHGTY*89uiokj
random spammer: ty9oihgft7989
DarkLight: hey! stop that
random spammer: UYOIHGYui809iuhoj
DarkLight: wat going on?
6ubl3rf4n: Oh noes! run its a spamalanche!

(when opening your inbox)
George: What th--? 20 new emails?
Jayne: 20? Who're they from?
George: Ah, forget about it. They're all spam...
Jayne: (laughes) you've just been hit by a spamalanche

spamalanche by 6ubl3rf4n April 15, 2009

Savalanche 

When Sav busts a load on your face and you fall asleep with it on. Then the next morning you realize it was Sav's jiz on your face, so you leave it on for the rest of the day for the world to see.

Half of Connecticut's female population is currently walkin around with a savalanche.

Savalanche by Jake88 November 10, 2008

scatalanche 

A powerful explosion of greasy, runny shit from your ass, such as you might have after eating 10 White Castle hamburgers.

Mikey barely made it home from White Castle, sprinting to the toilet for the scatalanche from hell.

scatalanche by VelvetB August 14, 2009

Spanalanche 

A load of Spanish chavs running towards you with their pathetic hair styles and "bum bags"..! They normally run for English people, or just small people.

"Look Olivia it's a spanalanche..!! RUN..!!!"

Spanalanche by Unika March 10, 2008

Snackalanche

The onslaught of snack crumbs that collect at the bottom of the bag and their journey towards your face as you decide to eat them.

You want the snackalanche?

SNACKALANNNNNNCHE!

Can I have the snackalanche?

I hate the snackalanche, it's all crumbs and salt.

I LOVE the snackalanche! It's all crumbs and salt!

Snackalanche by Mahalawanda June 14, 2013