Sexual act defined by the consumption of a large steak, preferably medium rare and USDA Prime, from a plate resting on the lower back of a female partner while in the doggy style position.

More advanced purveyors will usually include a side salad and the use of a utility belt to hold various condiments and a remote control.

When properly executed (Pointed in the direction of a flat screen television during Sportscenter) the male participant may reach a peaceful state of being that is free from craving, anger and other afflicting states, otherwise known as Nirvana.

Willing female participates are few and far between, so one must use the utmost skill, tact and timing to introduce the Porterhouse into their sexual routine.
It was my Birthday and a playoff game so Tessa let me throw down the Porterhouse. She even ran the remote.
by MayhemInMayberry June 30, 2010
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It's like a donkey punch, except you hit to kill
Hey, did you hear Joseph is going to jail? He gave some bitch a porterhouse and got caught.
by SNRrh January 15, 2011
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A term used by hair stylist to describe the size of a gentleman's package while hanging out at the pool in Vegas.
"That's quite a porterhouse that guy is packing over there."
by Hair Cut May 7, 2005
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The act of fucking a girl doggy style while eating a steak dinner off her back.
I burnt my girl's back during an Alabama Porterhouse.
by MisterThief117 May 3, 2014
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An incredibly large asshole
Phil was never nice, a real porterhouse dick.
by Rendez Marmaduke July 13, 2011
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When your dad sneaks into your room in the middle of the night wearing a t-bone steak costume and then rubs A1 steak sauce all over your slumbering nipples. He then ejaculates into your dress socks.
Jesus Christ dad it's a fucking school night...can't you give this porterhouse fuckchild horseshit a rest already? I'm 22 years old, i'm not a god damn kid anymore!
by heyunclecharlie August 26, 2009
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