A type of shoe with an inflexible, often wooden sole sometimes with an open heel.

“Dutch people rarely wear clogs these days.”

A blockage.

“The plumber cleared the clog from the drain.”

A shoe of any type.

To block or slow passage through (often with 'up').

“Hair is clogging the drainpipe.”

To encumber or load, especially with something that impedes motion; to hamper.

To burden; to trammel; to embarrass; to perplex.