clog
clog
verb (clogs, clogged, clogged, clogging)
/klɒɡ/
transitive, often passive, intransitive
​to block something or to become blocked
clog something (up) (with something)
The narrow streets were clogged with traffic.
Tears clogged her throat.
The wheels got clogged up with mud.
clog (up) (with something)
Within a few years the pipes began to clog up.
OPPOSITE unclog