Cracking on

Flirtation with someone, whether it be someone known rather well, or a stranger you've decided looks pleasing to the eye.

Several hours earlier than the crack of dawn. Specifically, when you have to get up really early in the morning. See also dark times.

When someone doesn’t pull up there pant and there crack is showing you try not to stare. BUT when they are walking you see the crack cracking so you must stare.

snorting cocaine off of ones tailbone

Internet gaming term used for people who are insanely good at something.

Crack has many definitions. The first definition is a crack in a wall or floor.

The second definition is a buttcrack. Either a man's buttcrack or a woman's buttcrack.

The third definition is that Crack is a dangerous drug. It's more dangerous than Crystal Speed and Blue Speed despite being weaker than Blue Speed and Crystal Speed because Crack not only affects your brain, but also your heart (due to Crack being cardiotoxic while Speed is not). Crack is wack. Crack last around 30 to 90 minutes while it makes you high but act crazy. Speed makes you high but study and clean and shower more. Crack is freebase cocaine. It is made with cocaine hydrochloride and sodium bicarbonate. Crack ruins lives and it's more expensive than Speed while also being crappier. Crack gets its name from the crackling sound it makes while burned. Crack (benzoylmethylecgonine) can lead to a heart attack and extreme poverty because you're wasting all your money on crack!! Crack is wack!

Generally someone whose actions would lead one to believe that the person is using crack cocaine due to the stupidity or messed-up-ness of their actions.
Used to describe something stupid, messed up or to express frustration with something