- to free of an obstruction or impediment: to unclog a drain; to unclog rush-hour traffic.
- to become unclogged: I can't wash the dishes until the drain unclogs.
Origin of unclog
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- (tr) to remove an obstruction from (a drain, etc)
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