The slang expression "copped some z" refers to getting some sleep or taking a nap. The word "z" is a slang term for "sleep" or "zzz's" which mimic the sound of snoring. The spelling of "copped" is derived from the past tense of the verb "to cop," meaning to obtain. It is spelled as [kɑpt] in IPA phonetic transcription, with the "o" pronounced as "ah." Together, the phrase is pronounced as [ˈkɑpt səm zi].