bona fide
真実の、真正の、正真正銘 =real, true, and not intended to deceive anyone: #Only bona fide members are allowed to use the club pool.(LDOCE)
*bona fide bonireのpun?* pun 駄じゃれ、語呂合わせ =an amusing use of a word or phrase that has two meanings, or of words that have the same sound but different meanings [= play on words]