A person who engages in or promotes the activity of smacking (a term sometimes used in informal contexts).

थप्पड़ मारने वाला

English Usage: The smacksman was known for his exceptional skill in competitive games.

Hindi Usage: थप्पड़ मारने वाला खेलों में अपनी शानदार कौशल के लिए जाना जाता था।