Walken

[Michiko]

verb:
To hide [contraband], such as drugs, stolen objects, food, or any other things that may be forbidden in a certain place, in ones anus to prevent said contraband from being discovered.
Takes its name from the scene in the film Pulp Fiction where [Bruce Williss] character remembers [Christopher Walkens] character presenting him with his late fathers watch which Walken admits he hid in his ass while a POW.