Definition of mud lark
(Entry 1 of 2)
1 : a person who grubs in mud (as in search of stray bits of coal, iron, rope) specifically : an urchin who grubs for a living along the tide flats of the English Thames
b : any of various birds (as the meadowlark or the shoveler) that live in moist places
c : the Australian magpie lark (Grallina cyanoleuca) that makes mud nests
mudlark
intransitive verbDefinition of mudlark (Entry 2 of 2)
: to play, dig, or search in mud or on muddy ground
had been out all the morning sailing cork boats and mudlarking in the marshes— Crosbie Garstin
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