to have a hollow leg

have (a) hollow leg(s)

To be able to consume a larger amount of food or drink (especially alcohol) than is typical. The steakhouse, known for its huge portions, is introducing a number of smaller menu items for those who don't have a hollow leg. The way she drinks on a night out, you'd swear she has hollow legs.
See also: have, hollow

to have a hollow leg

Fig. to have a great capacity or need for food or drink. Bobby can drink more beer than I can afford. I think he has a hollow leg!
See also: have, hollow, leg