The term "knacker" is sometimes used in Ireland to denote an Irish Traveller. In 1960, senior politician James Dillon explained the term to the Irish parliament as denoting "the tough type of itinerant tinker". The use of the word is considered pejorative and has been criticised by Traveller advocacy groups. The term "knacker drinking" refers to the practice of consuming alcohol in the open, e.g. in a field or a park, or by a roadside or canal; typically cheap cider, beer or vodka from an off licence; "knacker drinking" is commonly done by teenagers or students.