A crazy fun person who is spotaneous is both spirit and conduct. Adapted from the french word 'fou'. Can be used in the female form as well, fouillarde.
A word from the vernacular dialect Gaga, still in use nowadays in Saint-Etienne and the Forez former province of France. Fouilla is a interjection expressing surprise, sympathy, affection, embarassment, concern, disappointment or disillusionment. It's a popular expression used in daily life in its original region. It can also be used to express nostalgia or claim a popular identity.
"C'est un sacré matru, fouilla !"
"Fouilla ! T’as vu ce badabeu comme y se gare ?
"Fouilla beauseigne, tous bazuts ces gagas avec leur franc-parler stéphanois"
derived from the affirmative 'for real'; used in conjunction with a form of the urban American slang form "my n***a", altered to "ma nilla". Often thought to have stemmed from the Muhammed Ali's famous 'Thrilla in Manila.'