"Balls on a hanger" is used to indicate that something is really awesome, sometimes in a unique or special way. The phrase can be shortened to "boah," which is pronounced phonetically.
The turkey sandwich from that shop is totally balls on a hanger; they use avocado and horseradish sauce and then toast it.
by TC-Jon September 28, 2010
 Get the Balls on a Hangermug.
Get the Balls on a Hangermug. by ChristyJ February 18, 2013
 Get the Ball Hangersmug.
Get the Ball Hangersmug.