This definition appears very rarely
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We have 191 other definitions for SP
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Samples in periodicals archive:
When the lawyer asked Cruise if he and the church consider Holmes to be a suppressive person when she left, he refused to give a straight answer, saying "that is a distortion and a simplification of the matter.
They took a potential trouble source/suppressive person course for persons connected in their lives who are a Suppressive Person.
She added: "They said that my mum was an SP - a suppressive person - to them it means someone who is against Scientology.