Search Result for "snarl-up": 
Wordnet 3.0

NOUN (1)

1. a number of vehicles blocking one another until they can scarcely move;
[syn: traffic jam, snarl-up]



WordNet (r) 3.0 (2006):

snarl-up
    n 1: a number of vehicles blocking one another until they can
         scarcely move [syn: traffic jam, snarl-up]