When you get stuck posing with the fat girl on your knee in a group photo. Afterwards the knee looks like a swaybacked horse.
Alpha male- "Dude, thanks for being my wingman, sorry about that grenade knee."
Beta male- "Okay, Bro, but next time you get the grenade knee."
Alpha male *under his breath* "Yeah, right."
someone who describe to simply, ʀᴇᴍᴏᴠᴇꜱ ᴏɴᴇꜱ ᴋɴᴇᴇꜱ. you can call the local knee removing service to call one up and remove their knees. this can be described by Knee removing .
Person: hey jerry, I sure do hate that guy. can you call up the knee remover up for me?
Jerry: this is an orphanage.
When bae wears denims with holes and showing too much knees.
Wow bae, you’re showing too much knee cleavage! my friends are looking!!
When someone (usually of the tall variety) stands up straight and their knees look like a fetus face. Also knows as 'Old Man Face Knees'.
Me: Hey Stratho, look at the tall chick. She has fetus knees. Weird.
Stratho: I like it.
To beat someone up so badly that their knees turn purple
Hey Waseema, I'm gonna give you purple knees if you don't shut up!
The "proper" way to do an indy grab in skateboarding.
involves tucking your back knee into the nestle of your front leg, and reaching your arm over your back leg to grab the board, as opposed to grabbing inbetween, which may result in a "stink bug" pose
you have to learn to frontside air proper! you never heard about the tuck knee?