When you take a crap on top of someone else's unflushed dump.
"I had to go really bad, but the shitter was plugged with someone's turd. So I just double parked it."
When you're leaving a movie with your girl and she's wearing a miniskirt and out of nowhere you fist her vag and ass at the same time.
"Did you hear why Katie's having trouble walking? John gave her the double parking lot surprise after watching Mockingjay part 1!"