1. mentalist - Noun
2. mentalist - Adjective
mentalist (comparative more mentalist, superlative most mentalist)
Of or relating to mentalism
A practitioner of mentalism.
(UK, slang) An insane person.
Source: en.wiktionary.orgSmiling Kanye West Celebrates 41st Birthday With Kim Kardashian and a Mentalist: PicsThe now-41-year-old rapper looked relaxed and appears to have had a blast with friends, family and some mind-bending entertainment. Source: Internet
It was of Simon Baker (of The Mentalist) holding the reins of a horse; I think it was a watch ad. Source: Internet