Tampered meaning : To make unauthorized or improper alterations, sometimes causing deliberate damage; to meddle (with something). To try to influence someone, usually in an illegal or devious way; to try to deal (with someone). To meddle (with something) in order to corrupt or pervert it. To involve oneself (in a plot, scheme, etc.). To attempt to practise or administer something (especially medicine) without sufficient knowledge or qualifications. (in professional sports) To discuss future contracts with a player, against league rules.