Originates from the Merseyside village of Eastham. The practise of the "Eastham Roundhouse" is where a youth will call another youth a "fanny" and then volley a football at his/her face, to show off infront of the rest of the crew.
Youth 1 - "did you hear about biddo the other night?"
Youth 2 - "nahhh mate what happened?"
Youth 1 - "he got an eastham roundhouse off dennis"