I love the use/miss-use of English. I miss-use it all the time as most people probably do. However, I have to add one to the list that jumps to mind;
a politician does a backflip. This does not mean what it is intended to mean. When someone does a backflip, they end up facing the same way. The phrase that should be used is; to do a one hundred and eighty degree turn on a decision.

Actually the correct phrase should be; yes you are a lying tool.