I need help with a phrase from a George Kelly play!!!

Posted by Lynnae Andersen on March 21, 2003

Hi all,
I was wondering if anyone knew the meaning of this phrase, found in George Kelly's play "Daisy Mayme," written in 1926:
"My name is absolutely DENNIS out there in that kitchen! They won't let me do a thing!"

What does the phrase itself mean? What did DENNIS refer to in the 1920's???
Help!! My actors are struggling for the answer. Thank you!