“以头抵撞”常见的英文表达可以是 “butt (one's head) against” 或者 “ram one's head into/against” 。
“butt (one's head) against” 侧重于描述用头轻轻或重重地顶撞某个物体，带有一种持续或反复撞击的意味。例如：He kept butting his head against the wall in frustration.（他沮丧地一直用头撞墙。）
“ram one's head into/against” 强调以一种较为猛烈、有力的方式用头去撞，更突出撞击的力量感。例如：He accidentally rammed his head into the low ceiling.（他不小心一头撞到了低矮的天花板上。 ）