When a man takes an old wooden ruler, and smacks his girl on the ass such that the protruding/indented inch marks on the ruler are imprinted to the girl's ass. Then the man measure's his cock on the ass imprint (before fucking the girl) while she looks in a mirror, so she can see exactly how much she's going to get and prepare accordingly.
Use in a sentence: She asked me how big I was and I replied, "bend over and I'll give you The Ruler."
When you are in a heated debate with someone else and there seems to be no end in sight. To end this altercation between two bro's. This refers to the measurements of the male penis, but in contest form.
Mike: What are you saying? Obama's a great president.
Joe: No he's not he is terrible and isn't getting anywhere with our economy.
Well, quite obviously, we are the rulers of the universe. Duh. Do you not read?
Girl 1 "boygee you are cool"
Boy 1 " i know i am a megan and phoebe"
Girl 1 "Whats that?"
Boy 1 "Your stupid-ness makes me chuckle, Well, quite obviously, megan and phoebe, the rulers of the universe. Duh. Do you not read?"
Girl 1 "i feel so much more knowledged now"