Top Definition
Similar to the dag found on a sheep, but it's the crap found on a fish's butt.

Amusing due to the fact that it moves like a small tail when the fish swim around.

Remotely resembles a small intestine.
Dude, that fish's aquadag is two inches long!
Scooba Steve is such an aquadag!
by Type Ridley April 06, 2006
6 Words related to aquadag

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