(noun) origin - jamaican 1980s. singular and plural.
1. An expression of support or encouragement.
2. An expression of remembrance.

origin - "Up" is an english term used to mean elevation. Therefore the term "big up" literally means to elevate highly or to a superlative degree.

it means to give respect or to acknowledge someone

a show of respect, also see props.

Word means to applause some one on a good doing, to congratulate them.

exaltation or encouragement; (of self) to boast

congradulate, form of praise to oneself or to another

Expression commonly used by Nats mainly the nutty variety.