examples:
Skin-picking (“Excoriation disorder”)
Hair-pulling (“Trichotillomania,” “Trich,” or “Hair-pulling disorder”)
Nail-biting (“Onycophagia”)
Hair nibbling (“Trichophagia”)
Teeth-grinding (“Bruxism”)
Cheek biting (“Morsicatio Buccarum”)
Tongue biting (“Morsicatio Linguarum”)
Compulsive nose picking (“Rhinotillexomania”)

5% of the world has this I bite my tongue

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.