Informal Perfectly clean: squeaky-clean hair.
Informal Free from moral fault or taint; untarnished and virtuous: "Despite its squeaky-clean image, [the agency] suffered waste and inefficiency” ( William D. Marbach).
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.