<p><strong>Noun:</strong></p><ul><li>Slang: phone phreak</li></ul><p><strong>Verb (used without object):</strong></p><ul><li>phreaked, phreak·ing: to act as a phone phreak.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>phreaked, phreak·ing: to tamper with (telephones) as a phone phreak does.</li></ul>