Clog

Holzpantoffel

(a type of shoe with an inflexible, often wooden sole and an open heel)

Holzschuh

(a type of shoe with an inflexible, often wooden sole and an open heel)

Klotz

(an encumbrance or impediment)

Pantine

(a type of shoe with an inflexible, often wooden sole and an open heel)

hemmen

(a blockage)

verstopfen

(a blockage)

verstopfen

(to block or slow passage through)