If by crouch sprint you mean baby legs, you can do it by being fully crouched and jumping to a higher place. You also don't want to crouch when you land or it will cancel everything.

So for example if you do this after male ward boostup, you would crouch after the boostup, wait a little bit, jump to the other side and stop pressing crouch.

Also this is only a visual glitch, you have your POV as if you were crouching but you still have the same hitbox.