Well, at least she was close...

Audrey: Mocha, do you know about your vines?

Mocha (my mom): Vines?

Audrey: Yes, Mocha. The vines in your body?

Mocha: What vines in your body?

Audrey: You know - the vines that carry your blood?

Mocha: Oh - you mean veins?

Audrey: Yeah, veins.