assistantthrower

noun
UK /əˈsɪstəntˌθrəʊə/
US /əˈsɪstəntˌθroʊər/

A person who helps throw something.

The assistantthrower handed the ball to the pitcher.


OTHER MEANINGS

2. A device that helps launch an object.

The assistantthrower launched the tennis balls during practice.

3. A player who sets up a throw for someone else.

As the assistantthrower, she positioned the ball for the final toss.

4. Someone who supports a throwing event.

The assistantthrower cheered from the sidelines during the competition.