Définitions
1.NounA pike (type of fish).
2.AdjectiveAssociated with or filled with pike (fish).
3.NounAn itinerant person, especially one of Romani or Irish Traveller heritage.
4.NounA working-class (often underclass) person with negative qualities stereotypically ascribed to itinerant people, including rowdiness, theft and poor hygiene.
5.AdjectiveAssociated with pikeys.
6.VerbTo steal.
7.Verb↑ Oxford Dictionary of Modern Slang (2010, →ISBN, page 218: "From pike verb, perh. in the earlier sense, to steal."