1 definition by MamaGramma
a word used to describe anything that works without electricity. It can also refer to doing anything without using electronic gadgets, or something old fashioned.
" My grandpa has an acoustic 1930's phone."
or
" Fred didn't ask Liz out on Facebook, he did it the acoustic way"
or
" Fred didn't ask Liz out on Facebook, he did it the acoustic way"
by MamaGramma March 5, 2010