The act of forcing your index finder up the clothed anus of a friend or
stranger, so that they cry out
like a startled goose, the word "goose" must be said before the
action takes place
i shouted goose in the pub, no one covered up, so
guy in front of me got a bit of a surprise when my finger penetrated his anus through his pants, so shocked infact he had no
words to protest against the action, so he just squawked
like a dishevelled goose.