Surprisingly the 30-year-old man appeared in "good spirits" as he was left dangling waiting for the emergency services.
He had not even made it into this particular pub when the incident happened as he had been refused entry at the door.
But the dopey drinker made his way to the gate in a sneaky attempt to bypass the staff - in what could have been a cunning plan.
An ambulance and fire crews were called to the pub at the Wellingborough Road to rescue the drunken man who said he could not feel any pain after the metal spike had gone through the lower part of his leg.
After half an hour and with the fence in seven pieces, the reveller was freed and taken to Northampton General Hospital.
He said: The bouncers came to his aid after he was calling out for some attention. He had been refused entry because he was so drunk.
"He tried to climb over the fence. Although the back gate was open and he could have just walked through it.
"But he seemed fine and, maybe because of the drink, he did not seem to be feeling the pain."
One local punter said he hoped the man was okay but people in the pub found it hilarious.
He said: "Everybody found it hilarious the gate was open and had no need to climb over anyway.
"He seemed OK but it must have hurt a lot in the morning."