Mistakenly utilized slang term too often associated with discharges from the male penis. In reality, the "dick splash" is associated with the large orgasm of a woman who is enjoying sex and completely soaks a man's penis when the orgasm occurs.
Woman: "Oh baby, oh baby, oh baby, oh baby! Yesssssssssssss!"
Man: "Whoa! Honey, you just seriously dick splashed me!"