Can be heard being shouted in the gym when pushing out that last rep. Similar to Rocky Balboa shouting "Adriaaannn!"
Has expanded in it's use to describing something that is pretty powerful or strong.
"Come on man - one last rep."
"Amissshhhh!" (Rep successfully pushed out)
"Wow man, look at that guy go"
"Yeah that is some serious Amish right there"
February 17, 2012