# big up

> English word · Verb

## Definitions
1. To increase one's muscle mass.
2. To become big.
3. To behave confidently and proudly.
4. To proclaim or exaggerate the importance of; to promote.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/big-up