A knife that requires "skill" to handle, not just any regular blade, one that flips and twist and shit. Originates from knives that people use that switch blade knives.
That one person who brings hard ass drugs to a party like heroin,cocaine, and of course crack. No one likes this dude because he causes the death of many people in the future due to OD
The intensity of a relationship, usually a sexual one. Comment used to describe a very intense relation ship without asking "Have you guys had sex yet"