Corkage
/ˈkɔːrkɪdʒ/
Definition 1 of 1
Pro Tip 1/3Restaurant Policy
Corkage is a policy some restaurants have, which can vary in cost. 
The restaurant's corkage may be listed in their menu or you could ask the staff.
Pro Tip 2/3BYOB Context
The term is usually used in 'BYOB' (bring your own bottle) situations at dining places. 
If it's a BYOB place, check their corkage fees before bringing your own wine.
Pro Tip 3/3Avoid Surprise
Knowing the corkage fee beforehand prevents unexpected costs on your bill. 
To avoid surprise charges, we inquired about the corkage in advance.