Heavily pregnant Jazz and her husband-at-the-time had decided to call their unborn son Oscar, then they received a visitor.
Her husband's friend came over and when the couple told him the name they had settled on for their unborn child, their friend burst into laughter.
"He was hysterically laughing, which made me confused… then he called the baby 'an ounce' and it finally clicked," the Sydney mum-of-five told Kidspot.
Jazz immediately started laughing.
Until that point, she hadn't realised people refer to "ounce bag of marijuana" as an "Oscar".