donki bawls can be used to replace such terms as "ass". in the following donki bawls is used as a noun:

My job sucks ass, becomes --> My job sucks donki bawls.

In this example, "donki bawls" is used as a noun as well, meaning literly that the subject is doing the action used to voice disgust:

Tim, Muchmusic's newest VJ, sucks donki bawls.