[make] an allusion

to reference or mention something indirectly to add depth or meaning to a statement or conversation

In her speech, she made an allusion to Shakespeare's famous line, "All the world's a stage."
The author made an allusion to Greek mythology when describing the protagonist's Herculean strength.
The comedian often makes clever allusions to pop culture icons to connect with the audience.
The politician made an allusion to Winston Churchill's famous speeches to inspire the nation during the crisis.
The teacher encouraged students to make allusions to historical events in their essays to provide context.