buckle down

:  a fastening for two loose ends that is attached to one and holds the other by a catch

:  an ornamental device that suggests a buckle

:  a crisp curl

:  to fasten with a buckle

:  to prepare with vigor

:  to cause to bend, give way, or crumple

:  a product of buckling :  bend, fold

:  a coffee cake baked with berries and a crumbly topping

:  toward or in a lower physical position

:  to a lying or sitting position

:  toward or to the ground, floor, or bottom

:  down (see ¹down) along, around, through, toward, in, into, or on

:  to cause to go or come down (see ¹down) : such as

:  to cause to fall by or as if by shooting :  bring down

:  consume

:  occupying a low position

:  lying on the ground

:  directed or going downward

:  descent, depression

:  an instance of putting down someone (such as an opponent in wrestling)

:  a complete play to advance the ball

:  an undulating usually treeless upland with sparse soil

:  a sheep of any breed originating in the downs of southern England

:  a covering of soft fluffy feathers

:  these feathers

:  something soft and fluffy like down