一个英文slang问题

have a hollow leg 形容海量. 也可以形容人的食量大,大胃王.
【 海量 】
例句：
Do you want to drink him under the table? 你想灌醉他?
Well... you can never do. He got a hallow leg, you know. 他可是海量,从来没有醉过.
【 大胃王 】
例句：
--You've ordered much more food than you can eat. 你点了这么多能吃的了吗?
-- i feel like starving !我感觉饿呀!
--Well. you really have a hollow leg. 哎,你可真是个大胃王.
望采纳,祝开心!