the damp, disgusting wetness one feels upon waking up in a bed that they have just moistened with their own sweat, not urine. nightmares and fevers are frequent causes.
An exclamation used as a reaction to hearing some information about incredibly sketch behaviour. Derived from the common Bristolian saying "shit the bed".
Jon : "Did you hear about how he bootystepped 10 different people in 2 weeks?"
Chris : "What the fuck? Sketch the bed!"
Like crime scene investigators, but figuratively, wear 'white gloves' and clean up the bed (the crime scene) after an extra marital or secret sexual affair to get rid of the evidence left behind i.e. semen, cum, etc.
"I hate my Samsung. I only had it a week before it shit the bed. I'm getting an iPhone."
When seeing the blue screen of death on your laptop: "Fuck! My computer just shit the bed!"
The lawnmower sputters to a stop in the middle of the yard. "There she goes--damn lawnmower just shit the bed.
After a disastrous first date: "Billy cooked for that hot girl on their first date. Talk about shitting the bed.