Vibin is the act of not stressing at all just embracing the relaxation of the air and chill surroundings. This word is usually used by stoner teens who doing nothing but sit awkwardly while looking into the sky.
Some dude: Hey Josh, how come you didn’t come to Jessica’s Party last week?
The general state of enjoying or feeling good about a situation, person, place, or thing. The euphoricbuzz you have at that time about something. Can be used to describe interest in a member of the opposite sex and like wise how they are feeling towards you. It can also be used to decribe various levels of intoxication/pleasure from drinking/sex.