Wiktionary
vb. To bend one's legs while upright to get to a lower position.
Usage examples of "bend down".
He says they bend down a young sapling and tie it to the noose so that it comes loose as soon as the animal is caught, and jerks it up when the tree springs back.
We bend down in our rowboat, slide into the narrow opening which is three feet high, and passing into the spacious cavern, remain there for half an hour.
Then, out of a perfect arabesque, I as the gardener's daughter bend down over the sleep ing prefect, blow a sorrowful ballerina's kiss -- without ever touching little Fenchel -- and run away.
I went on tiptoe, and he had to bend down a little for me to kiss him, but he didn't fight me.
She tried to kiss him, but he was too I, and he would not bend down.