Drop Dead Fred(1991)

Lots of kids have imaginary friends, but what if yours came back after you'd grown up? Elizabeth is struggling with her straying husband and overbearing mother when she comes across the old jack-in-the-box where her old friend was sealed by her mother. Freeing Fred, she is forced to come to grips with the reality of her own immaturity through his antics. Insane, crude, and poorly dressed, Fred is the childlike maniac in all of us. However, even imaginary friends have to grow up sometime. . .