A sex act involving a bucket of orange juice and a sweet onion. The male drinks the bucket of orange juice while the girl gives him a strip tease to turn him on. Then they do it in any position and right before the male cums, he cums on the sweet onion and the female eats it.
Similar to the New Zealand term "sweet as". Its a confirmation phrase for when you need to affirm that all is OK with the situation. Can also use "SweetUps" and "Ons"
"Hey can you pick me up at 5 oclock?" reply "Sweetons, see you then."