I have often heard people say
I could drink you under the table
I could drink you under the table
or
Mary drank Joe under the table
Mary drank Joe under the table
This typically means that someone could drink more alcohol than someone else.
What is the origin of this phrase?
It doesn't seem to make much sense to me at face value.
Sorry, I couldn't find any public uses of this phrase as I have never read it, I have only heard it used in conversation.