wipe (one's) feet on the mat

Translations
вытирать ноги о коврик
Someone always wipes their feet on the mat before entering the house.
Кто-то всегда вытирает ноги о коврик перед входом в дом.
Definitions
To clean or remove dirt from one's shoes by rubbing them against a mat, typically placed at the entrance of a home or building, as a sign of respect and to maintain cleanliness indoors.