when you are banging a girl so hard the bed slides across the room and rotates 45degrees
"Last night Jeff dominated her so good he parallel parked right next to the tv."
When a guy tries to "park" his dick in a girls mouth horizontally, cheek to cheek. It's a tight space and there isn't always a lot of time to back up, pull out and then maneuver until you're all the way in so if that space doesn't work, find one that will.
"I know it's a tight space, but I always have to back up and pull in a few times when I parallel park. It's too hard to get it all in on the first try."
a vagina so cavernous that you can put your junk in sideways.
That girl is so wide, you can parallel park her.