Ti-thâu-phôe chòaⁿ bô iû

豬頭皮炙無油

【解釋】豬頭皮沒有皮下脂肪，炸不出油

【比喻】(1)揶揄人愛吹牛 (2)一個人沒學問又愛吹噓，講話沒有內涵

【英譯】You can’t extract fat from pig scalp / Someone who has absolutely nothing to offer but lies