I was out with my new girlfriend last night, and she kept bragging about how good she was in bed and what she was going to do to me. I found out later that she was a mactress!
by Fudwumper April 24, 2011

'Dude she was pickin' up on all the guys, being the mactress that she is'
by Emily and Melinda (two white girls who be down) March 21, 2003

Mattress actress or porn star...
She is the best mactress in the business...
by Papity77 October 17, 2018
