Posted by R. Berg on December 10, 2001
In Reply to: Inform me; what is "keeping it on the QT" posted by capable on December 10, 2001
: : looked it up in an online phrase meaning site.. but all it said was keeping
something secret... dah!
: : What does the "qt" stand for? thx bunches!
: Nothing definitive but QT could just be short for the word quiet and hence secret.
That's what it is. The link below goes to a previous discussion (http://www.phrases.org.uk/bulletin_board/11/messages/872.html).