Define That What Your Mom Said Meaning

A clever combination of "that's what she said" and "your mom!". It was created to avoid the argument that "that's what she said" creates confusion because "she" is nobody while adding the punch of "your mom" jokes to it.

The phrase "last night" may be added to the end if extra pwnage is needed.

A mix of that's what she said and your mom.

Basically means the same thing as that's what she said, except you use your mom instead.

Just about. The greatest comeback to anything. Used mainly when talking about the size of genitals, but can apply to anything else.

A comeback that people say when someone says, " I bet you are terrible at sex." Or other comebacks. Then that person would come back and say, " That's not what your Mom said in bed last night."

the best comeback ever

You say this when someone insults you.