1 definition by FIDDLEmeTimbers

1

Hind quarters visible due to a female wearing only a shirt, with no undergarments.

Did you see the underass in Lindsay's profile picture?

Underass is far better than underboob in my honest opinion.

by FIDDLEmeTimbers April 03, 2010

Get the mug

Get a underass mug for your dog Trump.

• © 1999-2021 Urban Dictionary ® • advertise • terms of service • privacy • dmca • bug report • help • blog • data subject request

• © 1999-2021 Urban Dictionary ® • advertise • terms of service • privacy • dmca • bug report • help • blog • data subject request