buckle down to

listen to the pronunciation of buckle down to
English - English

Definition of buckle down to in English English dictionary

buckle down
To put forth the needed effort; to focus; become serious; apply oneself (e.g. to work or study)

If he would buckle down and do his homework, he could be an excellent student.

buckle down
work very hard, like a slave
buckle down
set to work with vigor