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1.
the act of inserting the finger up a subjects rectum then wiping the finger across the subjects bottom lip.
Look Ginner has fallen asleep , someone give him a "babba tash"
by doffer November 30, 2003
 
2.
To wipe ones anal ring with ones fingers then to smear it onto an unsuspecting victims upper lip, causing distress and humour.
Broseph, i can't believe Cleetus just Babbatashed Shaniqwa! She has a badass Babbatash right now and i am not going near her!
by Sambohero April 18, 2010