[1] : WordNet (r) 2.0

fly the coop
     v : flee; take to one's heels; cut and run; "if you see this
         man, run"; "the burglars escaped before the police
         showed up" syn: run, scarper, turn tail, lam, run
         away, hightail it, bunk, head for the hills, take
         to the woods, escape, break away
see also:
run scarper turn tail lam run away hightail it 
bunk head for the hills take to the woods escape break away 

[2] : Moby Thesaurus II by Grady Ward, 1.0

18 moby thesaurus words for "fly the coop":
   bail out, break away, break jail, break loose, cut loose, escape,
   escape prison, evade, flee, get away, get clear of, get free,
   get out, get out of, jump, make a getaway, skip, slip the collar

Coop >> C Words
Coop, definition of term: Coop
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Coop Up >> C Words
Coop Up, definition of term: Coop Up
coop+up_pag1.html

Caddis Fly >> C Words
Caddis Fly, definition of term: Caddis Fly
caddis+fly_pag1.html