Mumu, also spelled Moomoo, is the green cartoon bull that personifies a bull market, used on 4chan's /biz/ board and across the crypto community.

Where did Mumu come from?

Mumu first appeared in a /biz/ thread on July 13, 2018, introduced as a bull to counter the bear character Bobo.

In trading culture, Mumu stands for bullish, rising-market sentiment, the opposite of the bear Bobo. The word also has unrelated slang meanings outside finance.

He's typically posted as a reaction image when prices pump or to signal bullish confidence, often contrasted with Bobo.

Is Mumu still popular?

Mumu far outlasted rival names like Bevo and inspired a 2023 memecoin, Mumu the Bull ($BULL). That token launched on Ethereum in November 2023.

Mumu

2018image macroclassic

Published March 10, 2026

Mumu, also spelled Moomoo, is the green cartoon bull that personifies a bull market on 4chan's /biz/ board1. He first appeared in July 2018 as a counterpart to the bear character Bobo and stuck around as a /biz/ staple long after2. Mumu later inspired a 2023 Ethereum memecoin called Mumu the Bull ($BULL)1.

market mascot memes 4chan memes finance memes crypto memes ms paint memes

Overview

Mumu, also written Moomoo, is the cartoon bull that personifies a bull market, the trading term for a stretch of rising prices1. The crypto and trading community treats him as the mascot of the bull run, a role dating back to 20181. He's drawn in the wobbly MS Paint style of Apu Apustaja, the same base behind many of /biz/'s finance characters3.

Mumu's identity is built around his rival Bobo, the bear who stands for falling prices, and the pair are framed as locked in an endless struggle over where the market heads next3. A third character, Snibs, joined later to represent a flat, sideways 'crab' market4. Together Bobo, Mumu and Snibs make up the trio /biz/ uses to read the market's mood4.

Gallery

Origin & Background

Platform

4chan /biz/

Date

2018

The first Mumu appeared in a /biz/ thread posted on July 13, 2018, introduced as a bull to counter the board's existing bear, Bobo2. CoinMarketCap dates the character's origin to that same year, when /biz/ adopted him as the face of the bull market1. Hours after the debut, a separate /biz/ thread tried to settle on an official name using 4chan's trip-code 'get' system2. The name Bevo actually won that vote, but Mumu stuck and far outlasted it, with later searches returning around 22,000 hits for the bull2.

How It Spread

Through 2018 and the years after, Mumu settled in as /biz/'s go-to bull reaction, posted opposite Bobo whenever sentiment flipped1. A third figure, Snibs, arrived on March 16, 2019, to cover the sideways 'crab' market4. His official name was voted as Penny Pincher, but Snibs held on, the same way Mumu beat Bevo4.

Mumu's reach extends across the wider financial trading community, which uses the bull as shorthand for a market on the rise3. On November 11, 2023, an ERC20 memecoin named Mumu the Bull ($BULL) launched on Ethereum as a tribute to the character1. The token shipped with a fixed supply of 100 trillion tokens and a 1% transaction tax set aside for marketing1.

The word 'mumu' carries unrelated meanings outside finance, including a loose dress and, in some Central European slang, a crude term5. Those senses predate the bull meme and have no connection to it5.

How to Use This Meme

Mumu typically works as a reaction image. Posters commonly drop him into /biz/ threads when prices are pumping or when they want to project bullish confidence, often contrasting him with Bobo when sentiment turns1. A common convention is the back-and-forth format where Mumu and Bobo trade wins as the market swings, a setup that started on 4chan and traveled with the character2.