— unclogger , n.
/un klog", -klawg"/ , v. , unclogged, unclogging .
v.t.
1. to free of an obstruction or impediment: to unclog a drain; to unclog rush-hour traffic.
v.i.
2. to become unclogged: I can't wash the dishes until the drain unclogs.
[ 1600-10; UN- 2 + CLOG ]