key 鍵、鍵で引っかく

car key は車の鍵だが、key a car といえば鍵で車に引っかき傷をつけるという意味になる。2:48 it's time to go home now and I've got an aching head. so I'll give her the car key and she'll help me to bed.

Eric Clapton[70] 14. Wonderful Tonight

https://www.youtube.com/watch?v=sMcoYuA2N-g  2:55 her house keys and car keys
Domestic violence 'completely destroyed me'

https://www.youtube.com/watch?v=bOxfiZvznmY  1:26 it feels like car keys.　
Quirky and Trending Holiday Gifts

https://www.youtube.com/watch?v=dPuESKY3rQU  0:50 car keys
Employee abducted during robbery in Isle of Wight

https://www.youtube.com/watch?v=BlV47VoOtnw  0:20 the women caught keying the officer's car with profanity. ビデオにはこの女性がパトカーにくそったれと鍵で引っかき傷をつけている現場が捉えられていた。
Mom Gets Revenge On Officer's Car After Getting Parking Ticket

https://www.youtube.com/watch?v=QoF3vc99Et0  0:32 Mike Duffy heads out and keys their cars.
RMR: The Front Page - Oct. 29, 2013

練習問題解答
a-7201 car keys