Fictional creature invented by Dr Seuss characterised by its bird-like qualities such as having wings, a beak, typically avian feet, despite being a biped and having no known use for its wings. In its book of origin, the Noothgrush stands on top of the toothbrush bristles of a young boy, much to the boy’s dismay.

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.