Backseat Gelato is when you're tapping someone from behind, and you glaze them with a nice soft-serve dollop between their cheeks as you finish. Ideally preceded by "I hope you're hungry... ".
"Heard you were up camping by the lake with your girl this weekend. Did she finally let you tap that?"
"Hell yeah, we were at it half the night edgin' and when I finally blew I gave her a helping of backseat gelato!"
Enter an automatic car wash with your partner in the passenger seat. Once in the car wash proceed to jump in the backseat and fuck, but finish and be back in the front seat by the time the car wash is over.
Her: “Babe I’m feeling filthy. What do you want to do?”
Him: “How about the Backseat Splash and Dash?”
One not worthy of sitting in the front seat.
"Get to the back, you a backseat nigga."
Bart Simpson has been backseat coaching his kid to play the overload when the rest of the team is doing an umbrella.
When a grandpa gives you head (no dentures) in the restaurant parking lot, and then afterward you get a Werther's Original from em.
"Dude, did you see that chick getting a Backseat Grandpa?" "No, hurry up the restaurant just texted me our table is ready."
Performing multi sex acts and positions in backseat of small car.
They were doing some serious backseat yoga.
“Make sure to vacuum thoroughly”
“Dad, stop backseat vacuuming!”