What is Back Wash?
1.
The transfer of saliva and/or foreign substances from one's mouth through a liquid medium.
Melissa's soda has back wash in it, so i do not want it again!
See 
2.
1.some freak'o crap who's so freaking lame in giving ud definitions
2.lame brain
oh, look at me! im back wash! im so lame, i can't even spell my name!
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