The spelling of "nutty slack" can be explained using IPA phonetic transcription. "Nutty" is pronounced as /ˈnʌti/ with the stressed syllable being the first one. Meanwhile, "slack" is pronounced as /slæk/ with the last syllable having the primary stress. When combined, the stresses from the individual words do not change, resulting in the final pronunciation of /ˈnʌti slæk/. As for the meaning, "nutty" refers to having a taste or smell of nuts, while "slack" means loose or relaxed.