There is a folk etymology for the name: because Bocardo was found to be one of the harder forms of valid syllogism for students to learn, it was said to be the name of a prison that was hard to escape from.
ðɛɹ ɪz ɐ fˈoʊk ˌɛɾɪmˈɑːlədʒi fɚðə nˈeɪm: bɪkˈʌz bəkˈɑːɹdoʊ wʌz fˈaʊnd təbi wˈʌn ʌvðə hˈɑːɹdɚ fˈɔːɹmz ʌv vˈælɪd sˈɪlədʒˌɪzəm fɔːɹ stˈuːdənts tə lˈɜːn, ɪt wʌz sˈɛd təbi ðə nˈeɪm əvə pɹˈɪzən ðæt wʌz hˈɑːɹd tʊ ɛskˈeɪp fɹʌm.