1835 B. M. Senior 105 In a deep cavity, of a somewhat crumbling rock, near the road-side, which they term a ‘marl hole’, are seen, probably, from ten to twenty men.
1961 F. G. Cassidy v. 75 The common limestone used in making roads..is dug out of the hillsides from marl holes.
1992 C. Tóibín (1993) iv. 45 They came down the lane and parked beyond the marl-hole.