Jankers
VERNACULAR TERM FOR MINOR PUNISHMENTS WITHIN THE BRITISH ARMED FORCES
In the British Armed Services, jankers or Restrictions of Privileges is an official punishment for a minor breach of discipline, as opposed to the more severe punishment of "detention" which would be given for committing a more serious or criminal offence. To be "on jankers" means the serviceperson has been put on a charge by a non-commissioned officer (NCO) or occasionally a commissioned officer (referred to in service slang as "being put on a fizzer"), and so having the alleged offence entered on a Charge Report (Army or RAF Form No.