grab·ble 
(grăbəl)
(grăbəl)intr.v. grab·bled, grab·bling, grab·bles
1. To feel around with the hands; grope.
2. To fall down; sprawl.
3. To catch a fish or try to catch a fish by hand; noodle.
[Probably from Dutch grabbelen, from Middle Dutch, frequentative of grabben, to grab; see GRAB1.]
grabbler n.