Define Shat The Bed Meaning

Shat The Bed
a slang phrase that is often used to mean 'woke up early', the reasoning being that if you shat the bed you would get out of it asap.

-'shat the bed'?
-'nah couldnt sleep'
By Mattie
SHAT THE BED
WHEN SOMETHING GOES TERRIBLY TERRIBLY WRONG, OR BREAKS. USUALLY RUINS YOUR ENTIRE DAY AND MAY CAUSE SOME PEOPLE TO UNCONTROLLABLY SHIT THEIR PANTS.

TOM: WHERES YOUR BIKE?

ISHKEBIBEL: THE FUKIN THING SHAT THE BED LAST NIGHT, CAUSING ME TO DEFECATE IN MY PANTALOONS.
By Charleen
Shat The Bed
To got up really early in the morning much earlier than you ususally would.

Man I Shat the bed today. I had to get up at 6am to catch the plane.
By Adriane