Being the vehicle stuck between the jackass going below the speed limit and the jackass riding your bumper because of it.
ALSO a term used for a group of 3 or more people who stand right in the middle of an isle or walkway to have a conversation, oblivious to the all people trying to get around them.
Excuse me...excuse me... I have to use the can. Excuse me. Really? You are currently being a complete ass sandwich
, move your shit elsewhere!