Often used when describing the twitch streamer and professional scammer named YourRage. His inability to walk without a wheelchair because of his fragile knees is the source of this terminology.
βBro take me to the doctor I have too much knee painβ
βAH NAW I THINK YOU HAVE L KNEES LIKE YOURRAGE πβ
When a girl has given enough blowjobs, and her knees are red and bruised from being on them so often. Can also happen after a single very long blowjob.
Can also occur after bumping into things, falling over etc.
1) "That girl has a s serious case of blowjob knees"