The sound you make/words you say when you imagine/think about one of two things:
- a particularly sumptuous article of food,
or
- getting some action with a particularly hot and sexy individual.
Or just a
general phrase to use when you are
at a loss--not so much in an
awkward situation but just
bored or
semi-retarded. Also pronounced "humina humina", and may be substituted for "
hubba hubba" depending on the context and situation.