hollerer
nounUK /ˈhɒlərə/
US /ˈhɑːlərər/
A hollerer is a person who shouts very loudly.
The hollerer at the back of the crowd made everyone turn around.
OTHER MEANINGS
2. A person who calls out to someone, especially to get attention.
The hollerer waved and called her name across the street.
3. A person who complains loudly and often.
He became known as the neighborhood hollerer because he grumbled about everything.
4. A worker who shouts instructions or signals in a noisy place.
The hollerer on the dock told the crew where to move the crates.