1 definition by Angie C

When because of recent use, a little goes a long way. Usually referred to when re-gaining an alcohol buzz. (If you shampoo your hair and ever "repeat", you know how just a tiny bit of shampoo will cause instant lather? that's the shampoo effect)
I had so much to drink last night, all it took was one beer this morning to get me buzzed again, gotta love the shampoo effect!
by Angie C September 14, 2005
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