Aiden

A person who refuses to drink alcohol at any time

"hey do you want a drink" "no thanks I don't drink" "omg you're such an Aiden"

Aiden

A guy who refuses to drink alcohol at any point

Man 1: "yo you wanna come get a drink"
Man 2: "nah bro I don't drink"
Man 1: "omg your such an Aiden"