Top definition
The more elite form of Sea-Gnome.
You feel a sharp stabbing pain while in the water. You look down and exclaim "Argh, a sea gnome!" Your- in all likelihood unstabbed- friend should then procede to point out "No man, see the oxygen tank? That's a Hydro-Gnome."
by Mr "Sarcastic" February 19, 2011
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