English to Persian (Farsi) Art/Literary Poetry & Literature

Hello.
How would you translate "Crabbed my way along the fence" in the following text?

I ran back down the garden as Adam pulled his football shirt on over his head. I ran down the alleyway but I stopped just short of the footpath of my road, if Sid was looking in this direction, he would see where I'd come from and it might make him suspicious about where I'd come from. I pressed my back flat against the school fence and slipped around the corner to the right and crabbed my way along the fence towards the school gates.