gandalf - это, вообще, глагол?

правильный ответ - теперь да.

1. gandalfed
To be denied access to somewhere or something. Derived from Lord Of The Rings The Two Towers where Gandalf proclaims "YOU SHALL NOT PASS!"
Pete couldn't get in Sophbeck because he didn't have any ID so got gandalfed by the bouncer

2. gandalfed
The process of having been pentrated by a large staff or rod, chiefly with sexual connotations
My boyfriend Gandalfed me so hard last night.

http://www.urbandictionary.com/define.php?term=gandalfed