A robustly large female who retains everything, not just water, I mean EVERYTHING! A close relative to the sea donkey and the wombat, the water retaining sea cow moves with a shuffling gait, ambling along to her destination.
"I was walking down the road when this water retaining sea cow cut in front of me at the donut hut!"
by CrazyBob62 May 13, 2006
A small animal that is irritating and offensive, coming forth from my girlfreinds mouth like a thousand spikes from a Tomb raider trap.
Ha Ha you water retaining sea cow im so funny
by Heatho November 17, 2006