From WordNet (r) 3.0 (2006):
snarl
n 1: a vicious angry growl
2: an angry vicious expression
3: something jumbled or confused; "a tangle of government
regulations" [syn: tangle, snarl, maze]
v 1: utter in an angry, sharp, or abrupt tone; "The sales clerk
snapped a reply at the angry customer"; "The guard snarled
at us" [syn: snap, snarl]
2: make a snarling noise or move with a snarling noise; "Bullets
snarled past us"
3: twist together or entwine into a confusing mass; "The child
entangled the cord" [syn: entangle, tangle, mat,
snarl] [ant: disentangle, straighten out, unsnarl]
4: make more complicated or confused through entanglements [syn:
snarl, snarl up, embrangle]