When someone is so amazingly good at something that watching them perform the task is the equivalent of watching an average person who is on crack do the task. This can range from any task from typing fast, cooking well, being alert, etc.
Person 1: Dude did you see James in the 400m sprint? He beat everyone without even trying!
Person 2: Yeah, holy shit dude, I swear James is cracked out.
When someone farts while in the middle of sex.
"Dude, I'm so embarrassed. Last night when I was banging Jenny, I cracked the egg. I hope she doesn't hate me.
when girls named Maddie at Clemson fall into the crack of the couch ; also referred to as the crack attack
Did you hear about Maddie in the crack?
Yeah it was crazy
when you credit card someone (take a card and slide it through someones ass crack to cause discomfort) with a hacksaw, causing severe pain.
dude i need a band- aid, i just got crack sawed.
When you can see someone’s ass crack poking out of their pants you shout “crack on”.
Look at jerry’s ass, “crack on”!
When one cracks a beer with one hand.
Brooo did you just see Chad frat crack that natty!