The Collaborative International Dictionary of English v.0.48:
Dingle \Din"gle\, n. [Of uncertain origin: cf. AS. ding prison; or perh. akin to dimble.] A narrow dale; a small dell; a small, secluded, and embowered valley. [1913 Webster]WordNet (r) 3.0 (2006):
dingle n 1: a small wooded hollow [syn: dell, dingle]