The spelling of the word "makes boner" follows the basic rules of English phonetics. The word "makes" is pronounced /meɪks/ (mayks) with a long "a" sound and a hard "k" sound at the end. The word "boner" is pronounced /boʊnər/ (boh-nuhr) with a long "o" sound followed by a short "e" sound and a soft "r" sound at the end. The combination of these two words creates a colloquial phrase that refers to the ability of someone or something to arouse sexual desire in a person.