to suddenly, and without warning, transition from a fully-functional state into a completely non-functional state.
"...and the next thing I knew, he had just conked out, right there in the middle of the room."
by acron^ October 30, 2009
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1) To suddenly be in a state of fully functioning to non-functioning.
1)We drank until we puked and then we all conked out.
3)I heard a pop come from the blender right before it conked out.
by Jacob Perrotta December 28, 2005
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British slang. Meaning

1)To suddenly stop working.

2)To suddenly lose consciousness/fall asleep
My SatNav just conked out!
Don't let her mix weed and booze or she'll throw up then conk out in the middle of the lounge
I was halfway through my twelfth Jaeger Bomb when I conked out
by GManIOM February 12, 2018
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karl maldern's cock conk nearly won him an oscar for best supporting nose
by theWestHamfan January 20, 2004
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Can replace any word when one needs to talk but has nothing to say
- Joe!
- Yes, Jack.
- Shwaney conks!
- I see
by motherboard May 18, 2005
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to fuck a girl from behind, right before you cum you hit her in the back of the head with a brick and she will tighten up.
"oh... oh.... im gonna *SMASH* ohhhhhhhhh yea tammy"
by dan May 22, 2003
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