1. A person who has a severe procrastination issue
2. Someone who is obsessive over grades and other such nonsense
3. A person that uses words (especially slang) incorrectly
4. A person that is extremely annoing
Alternatively, it can be defined as:
A person whom you would be best off never meeting, talking to, or otherwise having contact with.
Me: "You're being a Chukwudi!"
Anyone sane individual: "Take that back! Thats horrible! Oh god no!"