three strikes
noun
mass noun[usu. as modifier]
- US legislation which provides that an offender's third felony is punishable by life imprisonment or other severe sentence〈美〉(法律上对第三次犯暴力罪的犯人处以终身监禁或其他更严厉判决的)三击措施。
词源
1990s: from the phrase three strikes and you're out (with allusion to baseball).