That big fellow knocked the door open with a single punch.
Tips
usage
大汉 has two distinct readings. With a lowercase Hàn, dàhàn = a big, strong man (everyday usage, often in fiction and martial-arts contexts). When written 大漢 with capitalized Hàn it refers to the Han Dynasty (大汉王朝). Context disambiguates.
register
Common in wuxia and crime novels (e.g. 山东大汉 'a big Shandong fellow', stereotyped as tall and rugged). Slightly informal — neutral in narrative, less common in conversation.
