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1.
The opposite of water off a duck's back. An insult that you allow to cling to you and burn you like hell.
Don't dwell on insults. Research has found that acid off a duck's back yields very unfavorable results for the duck in question.
by spinaltapsoundguy January 06, 2010

Words related to acid off a duck's back

acid back duck far side gary larson insult water off a duck's back