The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D. Copyright (C) 2007 by HarperCollins Publishers. Cite This Source
Idioms and Phrases with same here
the same with me. Me too, I agree, as in I think she was lying all along.—Same here, or I couldn't sleep because of the noise.—The same with me. The first phrase is also used in an order for food or drink to indicate one wants the same thing as the previous person ordering; for example, One more beer, please.—Same here.
[ ; late 1800s