phrases, sayings, idioms and expressions at

Ps and Qs

Posted by Sathyaish on March 20, 2004

In Reply to: Ps and Qs posted by ESC on March 20, 2004

: : Watch your Ps and Qs isn't listed on here, but I have been told that it means a long time ago bartenders made marks on the wall of how many pints and quarts were sold to keep track of them.

: That's one theory. Several have been proposed here on Phrase Finder. If you'll click on the link below, it will take you to one discussion that lists several theories.