This volume investigates the evolution, usage, and cultural context of American slang terms beginning with the letters P through S. Jonathan E. Lighter, a noted lexicographer, compiles extensive historical evidence to trace the etymology and social application of colloquialisms within the United States. The work functions as a rigorous academic record, documenting how specific vernacular terms shifted in meaning and popularity across different decades and social strata.

Experts and linguists regard this series as a foundational reference for the study of American English vernacular. Readers frequently note the academic density of the prose and the exhaustive nature of the research provided in each entry.