To be in the middle of foreplay with a partner of the opposite sex, on a evening (or day) when many alcoholic beverages were consumed, only to have both parties simultaneously pass out, resulting in no one getting laid.
" Man I ended up wheeling that rocket from the bar last night back to my place, but it ended up being a DP..."

"Double Penentration? You sick son of a..."

"No man, DP Double Pass-out, the worst"

"Yikes"
by AlcoholicsAmongus January 17, 2014
Get the DP Double Pass-out mug.