[with obj.]knock or hit (someone or something) so as to cause a reverberating sound 敲;撞击(并发出巨响) he bonked his head on the plane's low bulkhead. 他的头“嘭”一下撞在了飞机的隔板上。
[wit.obj.](Brit.)have sexual intercourse[with obj.] (英)交媾
[noobj.](of a cyclist or runner) reach a point of exhaustion that makes it impossible to go further 到达极限
noun
an act of knocking or hitting someone or something so as to cause a reverberating sound 敲击 give it a bonk with a hammer. 用锤子敲击。 ■a reverberating sound caused in such a way 巨响
(Brit.)an act of sexual intercourse (英)交媾
(the bonk)a level of exhaustion that makes a cyclist or runner unable to go further 极限