A person (usually one holding leftist beliefs) who has read every single book, pamphlet and essay even remotely related to their ideology. A theorycel usually becomes insufferable due to their uncontrollable urge to use big esoteric words and definitions, while being unable to engage with anything possible in the real world. Your average theorycel can be found on tankie discords and twitter, peddling their specific form of socialism that will #definitelyworkthistime.

1. noun. It is the sudden feeling of an inexplicable joy one gets when something romantic or idealistic occurs.

When kilig, one may experience the following:

*butterflies in one's stomach
*heart melting
*shivers down one's spine
*irrepressible noises from one's mouth
*uncontrollable smiling
*an inner conflict between hope of something wished for and reality

Kilig may also be defined as that mountain top, floating, on cloud nine, invincible, i-could-keep-smiling, heart aching goodness and feeling which overpowers the mind's ability to think straight, act straight, breathe properly and articulate thoughts into a single comprehensible sentence.