0 to hit someone or something, not very hard:
1 to have sex with someone:
"I never bonked him," she claimed.
2 to reach a point where you have no energy left and feel you cannot continue physical exercise, especially when riding a bicycle or running:
3 the act of hitting someone or something, usually not very hard:
4 the act of having sex with someone:
a quick bonk
5 a point during physical exercise, especially riding a bicycle or running, where you have no energy left and feel you cannot continue:
Fat and protein slow digestion, so any carbs you get from beef jerky won't help your muscles 'til you've already bonked.
Emma has to be fed energy gels when she bonks after checkpoint one.
A bonk on the head has left him with no short-term memory.
"Let's have a bonk on the sofa," she said.
If she wanted to have a bonk she should have done it in her own time, not when she was supposed to be delivering the mail.
