look up any word, like tribbing:
 
1.
When you park your car in a big, empty spot on the street only to return later and find that two different people parked very closely in front and back of you.

While not (always) impossible to get out of, they are usually very tricky.
Ah great. I'm sandwiched in. I can't go anywhere until one of them pulls out.
by Gaaraofthedamned April 30, 2012