Aún no tenemos significados para "swill back".
1They (dangerously in that country) swill back the odd glass of vodka.
2Can't go two hours without swilling back a pint of freezing-cold Tennents?
3The water was swilling back and forth with each uneven roll.
4"Tell your copper-faced friend that he had better give that swill back to the pigs he stole it from."