Top definition
A moaning call between whales when they find each other attractive.
I went to the Aquarium today as I saw two whales greeting "Haum," to each other, so I knew they were attracted to each other.
by Dingss July 30, 2009
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug