Locking down too

down, not up—as in

facing down the crisis

pinning down the problem

throwing down the gauntlet

battening down the hatches

closing down the argument

shutting down the computer

tearing down the barriers

cutting down the roses

floating down the river

whistling down the wind

not as in

screwing up your courage

putting up resistance

throwing up earthworks

zipping up your jacket

tying up your shoelaces

topping up the tank

tearing up the contract

pulling up the weeds

picking up the pieces

wrapping up the meeting

shutting up shop