A kick swung from the side. There are three stages to a good round-house.
1) Bringing up the leg.- The kicking leg is raised with foot still flat and facing the floor.
2) The pivot.- Non kicking leg is spun so that kicking leg is forced higher and sole of foot is perpendicular to the ground.
3) Kick- kicking leg is flicked out and back again.
I round-housed that drunkard and stole his wallet.