Rackalanche 

When a girl with large breasts is heading in your direction.

Alisha causes rackalanches everywhere she goes because of her enormous breasts.

Rackalanche by Fat King Cole December 26, 2011

Rackalanche 

When a girl with large breasts walks in your direction.

Alisha causes rackalanches with her massive breasts.

Rackalanche by Fat King Cole December 7, 2011

Rockalanche

The falling of large quantities of rock

The rockalanche buried three cars on the mountain road.

Rockalanche by Mttzzzz December 20, 2010

Cackalanche 

A cackalanche is any overwhelming encounter with a large quantity of shit.

A typical cackalanche is what you might find when you attempt to change a heavily soiled nappy.

Cackalanche by Crafty Chemist January 10, 2010