>>There are definitely two separate literary traditions at work here. According to the OED2, the earliest reference for Bunny/Rabbit Foo Foo is Chaucer's _The Canterbury Tales_, "The Knight's Tale:" "And in the grove, at tyme and place yset, This bunnie Fewfew and this field maus be met. To chaungen gan the colour in hir face;"

The Knight's Tale includes the lines,
"And in the grove, at tyme and place yset,
        This Arcite and this Palamon ben met.
        To chaungen gan the colour in hir face"

There is no mention of FewFew here, and I can't find one in Shakespeare's Sonnet either. I suspect that all of the references are fake.

Buttercup