middle seat 

in cars that have them, where a girlfriend sits when her boyfriend is driving. in no other situation would anyone want to sit in it.

my girlfriend always sits in the middle seat in the truck so we can snuggle and kiss while i drive.

middle seat by hiddendude January 22, 2010

Middle Seat 

When a man or woman sits between the laps of two men and inserts both penises into their anus or vagina.

The Middle Seat is a really difficult position to get into.

Middle Seat by TheInformerofAll February 18, 2011

middle seat 

The middle seat in some cars. Between the driver and shotgun. Also see: bitch seat.

John was a poor bastard, being the last person picked up before the road trip. Therefore he was forced to ride in the middle seat.

middle seat by lamebums October 28, 2007

Middle Seat By The Toilet

An unseasoned traveler. Someone that gets the middle seat in the last row of an airline by the toilet because they have no airline status.

I had to wait in line at airport security forever, because of this friggin Middle Seat By The Toilet guy. He had no clue what he was doing!!

Middle Seat By The Toilet by Craig R November 13, 2004