Urban Dictionary: Definitions by Inland173shocker

Yawn maxing

When someone makes themselves yawn and suppresses said yawn to strengthen there jaw.

Your jaw looks fine, have you been yawn maxing

When someone makes themselves yawn and suppresses said yawn to strengthen there jaw.

Your jaw looks so fine, have you been yawn maxing?

When someone makes themselves yawn and suppresses said yawn to strengthen there jaw.

Your jaw looks so fine, have you been yawn maxing?