A male (not gay) who is entrusted with information as if he was a true girlfriend. He can be relied on to be there in crisis but who doesn't expect anything in return. A truly unconditional love relationship.

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.

When your daughter brings home her new boyfriend who is probably a girl. Hence her Birlfriend. A cross between a boyfriend and a girlfriend.