Top definition
HKM is short for hook-up monster. it's a guy/girl who hooks up a lot with different people.
gavin is a male HKM
by jaz9713 February 09, 2010
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

Alphabetical list