The substitution of an inoffensive term for one considered offensively explicit.
# Pre-owned for used or second-hand; enhanced interrogation for torture; wind for belch or fart; convenience fee for surcharge
Dr. House: Who were you going to kill in Bolivia? My old housekeeper?
Dr. Terzi: We don’t kill anyone.
Dr. House: I’m sorry–who were you going to marginalize?
(“Whatever It Takes,” House, M.D.)
“neutralize” for “kill”
Governments love euphemism
Try one yourself. Think up a euphemism for “taxes.”