Unknown, originally used in Australia, attested since the 1960s. One theory suggests that the source is Norco Co-operative, a butter manufacturer that featured a cow's udder on package labels, but this is considered dubious.
Modern English dictionary
Explore and search massive catalog of over 900,000 word meanings.
Word of the Day
Get a curated memorable word every day.
Challenge yourself
Level up your vocabulary by setting personal goals.