Female upper lip hair growth / moustache. Usually only sighted on women over the age of fifty with tuck-shop lady arms (see tuck-shop lady arms). Often utilized as a flavour saver (see flavour saver) the mahuhu is commonly removed for vanity reasons with wax or by shaving on a regular basis.
Can be observed in the highly acclaimed film 'the wedding singer' at the mutant table nine. A prime example of the mahuhu can be seen on the "lady with the side burns".
Wow man check out mrs. Halls mahuhu. She could sweep the floor with that thing.