informal (in the oil industry) a type of reciprocating pump used to extract oil from an inland well
Cleaner Than A Frog’s Armpit: Animal Sayings WorldwideRead more in this article about some frequently asked questions and fun facts related to our definitions.
Word Origin for nodding donkey
C20: so called from its shape and movement
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012