dumble noun2 •A shady valley, a dingle; especially one with steep wooded sides and a stream running through it.When a stream runs in a deep dell, particularly in clay districts, the steep banks and stream form what are called a “dumble” in Nottinghamshire. — 1859 •The club rush.Recently Dr. K. J. Allison has come across a Leconfield lease of 1631 which included 'all the earl 's dumbles growing in Arram Carr' ? — 1974 formsdumbles
