wool·gath·er 
(wlgăth′ər)
(wlgăth′ər)intr.v. wool·gath·ered, wool·gath·er·ing, wool·gath·ers
To engage in fanciful daydreaming.
[From the practice of wandering areas where sheep graze to gather tufts of wool caught on vegetation .]
woolgath′er·er n.