络腮胡 refers to a full, dense beard that grows along the sides of the face—specifically covering the cheeks and often connecting to the mustache and chin beard. The term breaks down as 络 (luò), meaning 'to spread or cover densely'; 腮 (sāi), meaning 'cheek' or 'jaw area'; and 胡 (hú), meaning 'beard' or 'facial hair'. Together, they vividly describe facial hair that spreads across the cheeks like a network. It’s a descriptive, slightly literary term often used in storytelling, character descriptions, or informal speech to emphasize a rugged, masculine, or mature appearance.

This word is commonly used when describing older men, historical figures, or fictional characters—especially in martial arts novels or period dramas—where facial hair signals strength, age, or authority. Unlike the neutral term 胡子 (húzi, 'beard'), 络腮胡 carries a stronger visual and cultural connotation: it implies abundance, wildness, or even untamability. It’s rarely used for light stubble or neatly trimmed sideburns, which are better described by 侧鬓 (cèbìn) or just 侧边胡子 (cèbiān húzi).