verb
(UK, Ireland, Commonwealth, slang) To injure or obstruct intentionally.
(UK, Ireland, slang) To gain influence over by corrupt means or intimidation.
(UK, Ireland, slang) To steal.
(transitive, slang) To tamper with (typically a racehorse or greyhound) in order to prevent it from winning a race.
noun
(UK, slang) A deliberate act of injury or obstruction.