The phrase "we chill" is generally used in reference to the state of two parties or people being in a state of "chill", "cool" or "non-hostility" towards each other. For example;
Party 1: "Yo, weren't we gonna have that arms race tomorrow?"
Party 2: "I mean, we don't really care much, we chill?"
Party 1: "Sure, we chill."
A small piece of information. Derived from the word ken, used often in the scottish language and is synonymous with knowledge.
Person 1: "Hey I don't get this shit. How do you solve this problem?"
Person 2: "I got that one. Give me some kenlets on this assignment and I'll help you w/ that one."