the act of semen shooting beyond its intended target eg. a tissue held in the hand; esp. with more powerful than expected ejaculations.
Shit! Now I'm going to have to clean the floor since i overshot the runway.

Be careful not to overshoot the runway onto your laptop.
by Alabama Guy March 25, 2011
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To let go of explosive, projectile diarrhea prematurely and miss the toilet.
Gotta run, that burrito made me feel like I'm about to overshoot the runway.
by nv_insomniac January 4, 2010
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To consume significantly more alcohol than planned, to err on the side of excess consumption.
Went out for a couple of pints last night, unfortunately I managed to overshoot the runway so dont expect me at work today.
by Drrty South March 8, 2017
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