Definitions by Wee Wee Man

Splash Down 

To unintentionally urinate whilst sleeping, commonly caused by excess consummation of alcohol. Believed to originate from military slang and often associated with Scottish people.

Splash down used in the past tense: “Last night I was really drunk, when I woke up I noticed that had I splashed down.”

Splash Down by Wee Wee Man November 2, 2009