I. noun
1. : a round shell of light pastry filled with whipped cream or a cream filling
2. slang
a. : a timid, weak, ineffectual, or oversensitive person
no namby-pamby, cream puff fighter — Sporting Life
b. : something trifling or inconsiderable
the play is a diverting cream puff
II. noun
: a usually used vehicle (as an automobile) that is in especially good condition