1 definition by IInSSyNc
The erection that men will have in the morning, just after they wake up. It's the way a mans body says "Wake up, or I will annoy the shit out of you."
Person: "Well, you're awake early."
Man:"I had to wake up because my morning wood wouldn't let me go back to sleep.."
Man:"I had to wake up because my morning wood wouldn't let me go back to sleep.."
by IInSSyNc February 22, 2014