with one hand behind your back

with one hand tied behind (one's) back

Easily, nearly without having to try at all. I'm a professional musician, so that song is hardly a challenge—I could play it with one hand tied behind my back!See also: back, behind, hand, one, tie

with one hand (tied) behind your back

1 with serious limitations or restrictions. 2 used to indicate that you could do something without any difficulty.See also: back, behind, hand, one