v. , informal 1. To dig ditches for protection against an enemy attack. The soldiers dug in and waited for the enemy to come. 2a. To go seriously to work; work hard. John dug in and finished his homework very quickly. 2b. To begin eating. Mother set the food on the table and told the children to dig in.
DIG IN
Meaning of DIG IN in English
American idioms English vocabulary. Английский словарь американских идиом. 2012