nodding donkey
noun
informal
(in the oil industry) a type of reciprocating pump used to extract oil from an inland well
Word Origin for nodding donkey
C20: so called from its shape and movement
Words nearby nodding donkey
nodal point,
nodal rhythm,
noddack,
nodding acquaintance,
nodding dog,
nodding donkey,
nodding lilac,
nodding pogonia,
nodding spasm,
nodding trillium,
noddle