Top definition
A long sleeve shirt a woman ties around her waist while working out, or otherwise wearing skin-tight pants, to hide her ass.
Did you see the girl on the treadmill wearing the assdana? Why the hell wear skin-tight pants if you also have to wear an assdana?
by sh4nn0nm November 12, 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