A daisycake is similar to a pansycake, but not limited just to the Divergent series. The meaning is basically the same, an insult that means pretty much coward, a prissy little delicate flower who can't possibly do anything. Calling someone a daisycake is generally unheard of and is decent for secretly insulting someone.
Seriously? That daisycake? She's so delicate and prim, there's no way she could possibly do anything requiring the slightest bit of strength.
Ruler of Lake Titicaca. Rumored to have a bunghole that gets very angry if it does not receive toilet paper. Cornholio the Great is often seen walking around with his shirt over his head and his hands in the air, chanting songs about his power, and his bunghole.
"I am Cornholio! You do not want to face the wrath of my bunghole, for I need TP!"
Butthead: Shut up, Beavis! (uh huh huh huh)
Beavis: Um, okay. (heh heh heh heh).