Noun

1. Footwear usually with wooden soles
2. Any object that acts as a hindrance or obstruction
3. A dance performed while wearing shoes with wooden soles; has heavy stamping steps

Verb

1. Become or cause to become obstructed
2. Dance a clog dance
3. Impede the motion of, as with a chain or a burden
4. Impede with a clog or as if with a clog
5. Coalesce or unite in a mass
6. Fill to excess so that function is impaired