What does "athletic supporter" mean?

An elastic garment supporting and defending male genitalia from modest injury. A jock strap.

What is a synonym for "athletic supporter"?

Common synonyms include: advocate, arm, back, backbone, backing, bandeau.

noun

noun ·Rare ·Advanced level

Noun

1
An elastic garment supporting and defending male genitalia from modest injury. A jock strap.
"As part of my equipment I am wearing an athletic supporter over a pair of jockey shorts."
2
a support for the genitals worn by men engaging in strenuous exercise wordnet
3
A booster for a cheerleading team.
"We were the best athletic supporters that ever lived. We paired off: cheerleader and basketball player, like a socialite wife and corporation executive, leading lady and leading man."

"As part of my equipment I am wearing an athletic supporter over a pair of jockey shorts."