What is Cat-valanche?
1.
To be pounced by multiple (more than two) cats simultaneously; to be E-pounced by more than two thread cat-owning posters.
"When I went over to Mrs. Chamber's house, I wasn't expecting to be cat-valanched by all her pets."
"When I signed up on the cat-lovers message board, I got cat-valanched by all the other posters."
See