A parking lot bed not a lot of room but just enough for two people to fuck!
Kiersten went into Casey's to get cigarettes big gulps doughnuts and condoms and when she came back she found Chad fucking Mackenzie in the Backseat of her car!
By SlopNChop
Is a reference to a person who frequently asks "what?". The term originates from people in the back of the car always misinterpreting the message of the people in the front seats. The term is properly used as a noun.
Teacher: Homework is due 3:00 Tuesday. Student: What time is homework due Friday? Other student: She said 3:00 Tuesday, backseat.
By Jjhuntley
Area of a car where fucking occurs.
I tossed my girlfriend into the backseat of my car and ripped off her clothes.
By Travman
part of the car where you go with your bitches
big backseats are just an excuse to bang fat chicks
By Zoobafoo
A really, really bad thing, person, situation or experience.
You've got arrested for a DUI yesterday?!?!?!?!?!?! That's totally backseat, man
By Mario Bruno