Definition
This is a humorous expression used to suggest that something, typically consuming strong alcohol or a large, filling meal, will make someone more masculine.
（閥語）這會讓你更像個男人！
"That whiskey will put hairs on your chest!" he laughed, handing me a glass.
「那威士忌會讓你長胸毛！」他笑著遞給我一杯。
Finishing that double cheeseburger will definitely put hairs on your chest!
吃完那個雙層起司漢堡絕對會讓你長胸毛！
"Want another shot? That'll put hairs on your chest!" my friend joked.
「再來一杯？那會讓你長胸毛！」我的朋友開玩笑說。