P.Q.

p's and q's

noun
  1. manners; behavior; conduct (usually preceded by mind or watch): The children were told to mind their p's and q's.

Origin of p's and q's

First recorded in 1770–80; perhaps from some children's difficulty in distinguishing the two letters
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for p-q

manners

British Dictionary definitions for p-q

p's and q's

pl n
  1. behaviour within social conventions; manners (esp in the phrase to mind one's p's and q's)

Word Origin for p's and q's

altered from p (lea) se and (than) k-you's
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012