Technically this is a non-word, used by those who don't have a dictionary or forgot the word "expressive"
Look up "expressionate" on dictionary.com - you'll find that it is not actually a word.
by someoneliterate February 21, 2008
To be both expressive and passionate at the same time.
She was very expressionate when she argued with her husband.
by Margy737 September 01, 2010
Having or showing overly expressive gestures especially in the face.
She is very expressionate.
by ddefa November 15, 2007