Figment of your imagination

Example-the purple elaphants and pink geese were figments of his imagination ,
something made up fabricated
daydreams are figments
nightmares are figments that can seem very real
most figments are everyday fears and hopes
about small things that turn out to be imaginary
for instance the car horn sounded like it was in the back yard
a daydream,fancy,pipe dream,unreality,nonreality,hallucination,vision
I think I hear the train coming gotta go figment of my 
imagination lol